Round Reed #4 2-3/4mm 1-Pound Coil, Approximately 500-Feet

Is this all natural (no finish) and what material is the souce of the reeds?

Can this type be used for reparing a wicker table?

Is the wicker treated with any chemicals?

Is this a completely round eaten and not flat on one side? I need a circular ratan. Can you tell me what product to order. It's a #4