--- product_id: 27355485 title: "ALVIN Compass Pro Speed Bow with Beam Bar 6\" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch" price: "₱4721" currency: PHP in_stock: true reviews_count: 9 url: https://www.desertcart.ph/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model store_origin: PH region: Philippines --- # 6" Precision Zinc Alloy Build Includes Beam Bar ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch **Price:** ₱4721 **Availability:** ✅ In Stock ## Summary > 🎯 Master Your Geometry Game! ## Quick Answers - **What is this?** ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - **How much does it cost?** ₱4721 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Design:** Perfect for geometry, architecture, and engineering projects. - • **Portable & Organized:** Comes in a hard, see-through case for easy transport and storage. - • **Precision Engineering:** Crafted from premium zinc alloy for unmatched durability. - • **Large Circle Capability:** Draw circles up to 18" with included beam bar and pen adapter. - • **User-Friendly Mechanism:** Quick adjustments with a sturdy push button for seamless use. ## Overview The ALVIN Compass Pro Speed Bow is a high-quality geometry and engineering tool designed for precision and versatility. Made in Germany from durable zinc alloy, it features a user-friendly push button mechanism for quick adjustments and can draw circles up to 18 inches in diameter with the included beam bar. Perfect for professionals and students alike, it comes packaged in a convenient hard case for easy transport. ## Description Product description Professional Drawing Compass Pictured: Model 604 Master Bow Compass ALVIN drawing compasses span a massive range of sizes, applications, and uses. Our traditional beginner and intermediate level compasses are sure to find themselves right at home in any geometry or art class. Our professional-level compasses are the perfect precision tool that any engineer, draftsman, or professor needs to add to their collection of drawing instruments. These metal drafting compasses can make precision circles from 1/8" up to 22" in diameter with added beam bar. ALVIN compasses are made with German precision engineering that allows for the precise and consistent drawing of radii. Made from quality materials such as zinc alloy, ALVIN drafting compasses are sure to last the test of time. The more advanced models, such as the 205V and the 975K, have adjustable knee joints for rapid adjustment and even greater ability to draft with accuracy. Kits with pencil adaptors allow for the attachment of a drafting pencil, pen, or marker. Add one of ALVIN's model 958 spring blade pencils to your kit with a pencil adaptor, or buy the model 505V kit to take your drafting abilities to another level. This pen is finely honed to create precise lines with India Ink. Review: product - perfect and case good to store Review: Disappointed - Difficult to operate, but that's probably user error. I thought I could attach different writing utensils to this such as permanent fine liner pens but unfortunately I can not. It's the whole reason why I purchase it. ## Features - Made from zinc alloy with a matte chrome finish. Sturdy push button mechanism allows for quick adjustments, while spindles is used for finite adjustments. - Features a double break leg for precise execution of circles up to 12" inches in diameter, includes leads, beam bar and pen adapter for circles up to 18" inches in diameter. - Premium Quality - Made in Germany and designed for durability and long-lasting performance for repeated use. - Multipurpose Tool - Exactly what you need for a number of projects including bisecting angles constructing geometric shapes, including perpendicular lines parallel lines, triangles, circles, pentagons - Conveniently Packaged - Comes in a hard, see-through plastic case for portability and easy storage and transport. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | ALVIN | | Brand | ALVIN | | Item Weight | 4.5 ounces | | Product Dimensions | 8 x 3 x 0.75 inches | | Item model number | 6" Pro Speed Bow Compass w/ Beam Bar | | Is Discontinued By Manufacturer | No | | Material Type | Zinc Alloy | | Number of Items | 1 | | Manufacturer Part Number | 205V | ## Images ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 1](https://m.media-amazon.com/images/I/815hHZfoZPL.jpg) ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 2](https://m.media-amazon.com/images/I/61aco86pBrL.jpg) ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 3](https://m.media-amazon.com/images/I/81xa38vryKL.jpg) ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 4](https://m.media-amazon.com/images/I/71RMcfXAlRL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ product *by G***O on August 26, 2025* perfect and case good to store ### ⭐⭐⭐ Disappointed *by C***A on August 3, 2025* Difficult to operate, but that's probably user error. I thought I could attach different writing utensils to this such as permanent fine liner pens but unfortunately I can not. It's the whole reason why I purchase it. ### ⭐ Overpriced and ineffective, truly a double whammy of ineptitude. *by E***R on July 14, 2025* Lots of play between the compass arms, they squish around easily and it makes the measurements inconsistent. These are no better than the much cheaper variants out there which, for the price, is an absolute shame. ## Frequently Bought Together - ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - SAKURA Pigma Micron Fineliner Pens - Archival Black Ink Pens - Pens for Writing, Drawing, or Bullet Journaling - Assorted Point Sizes - 6 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model](https://www.desertcart.ph/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-05-28*