This Bias binding is a high quality bias binding tape. It is 18mm or 30mm wide in its finished form depending on the size you choose with the two outer edges folded in. We have a wide range of colours available. Perfect for piping, binding seams, finishing raw edges, etc .65% Polyester 35% Cotton Please note colours may vary slightly due to different screen settings, if you have any doubt about a certain colour or shade please let us know via live chat, phone or email and we will do our very best to help you choose. Happy sewing.