SIGNATURE ACOUSTICS SA Du-Son Premium Replacement Tips Nozzle Size C 3.0mm T100 Memory Foam EarTips| Noise Isolation Comply with 4mm Nozzle Type| 3 Pairs|Medium|Red,Black,Grey

The size is medium and is bigger than medium and there is no return option for this. If you are using small or medium better buy from somewhere other than amazon. Customer service from amazon has changed a lot and they least worry about customer problems. They are asking me to use product even though they don't fit. Wasted my money on this.

The eartips are comfortable, but while purchasing no place was it mentioned the inner dia or the overall dimensions of the product. Having a hard time fitting it on my Boult trusive and lypertek Tevi

These are nice tips but a bit bigger from standard medium size.Truthfully, these are bit big for me so it takes a lot of effort to put them in.Nevertheless, comfort & sound isolation is good.Keep in mind that all 3 color combinations have different foam densities with black ones having the least density, hence higher comfort but a bit less sound isolation (in theory) and red being of highest density with supposedly best sound isolation but is not much comfortable for longer periods of use.Contrary to the popular belief, I found that bass was improved on my UE TF10s, though it might be because of the better sound isolation offered by these (better than my previous silicon ones - i used smallest size due to my narrow ear canals which did not provide a tight seal).They certainly lack in quality w.r.t. Comply ones but the price difference is way too steep to compare these with them.I'll be more than happy if these 6 pairs last me more than an year or two. :)

I have been using the comply tips and thought to give this a try. I believe they are good but quality not as good as Comply ones. However, what they do not have is the wax guard. Comply tips which I use have wax cover to avoid the ear wax to reach the earphones. If that also would have been there then it would be the best alternatives for Comply tips

The tips are great. They are comfortable and provide good sound isolation. Much better than some of the standard tips out there. I bought these for my galaxy buds pro, and while they fit the earbuds well, it was difficult to put the buds back in the case and charge them with these tips as they are larger than the standard ones. However, the white ones were slightly smaller so I was able to use them.

The tips won't fit most of the earphones also the major issue is it wears off quiet easily and doesn't fit that well. Used it a couple not times on stage with my IEM was really unsatisfactory. The foam started to tear off as soon as a weak. Way too overpriced for such quality I regret not buying comply foam

BUY EXACT SIZE BUDS.I USE S AND M SIZE BUD .BUT THIS ONE SEEMS A BIT LARGER TEARED EASILY WHEN I PUT SOME PRESSURE.OTHERWISE COMFORT AND ISOLATION IS PRETTU GOOD

Been using these eartips with the Moondrop Kanas Pro. These tips fits great with the Kanas Pro, even though at the time I ordered the product, I was apprehensive the holes might be too small for the big nozzle of the Kanas Pro. I have to say these tips are far better than the stock Silicon Tips that come with the Kanas Pro. They block out the ambient noice and are very comfortable. Considering the price, I will be ordering more of these in the future. One interesting thing I discovered was that the red tips are not as soft as the black ones. The black ones can be rolled properly before inserting.