Please be sure to include a message. For Tenor Saxophone Natural Cork Sheet Size: 63mm x 35mm, Thickness: 2mm 20 sheets Natural cork from Portugal Can be used for wind instruments, woodwind instruments Tenor Saxophone Commercially available beautiful corks are bleached or have holes filled with powder, but natural corks have stains and holes as they are, so please understand. Sales will be used for the activities of protecting stray cats.