Archery female thumb ring Size:20mm Easy to hook string and

Easy to hook string and smooth release

Canadian maple and glass fiber

Spine #300 was added

Adjust the wing nut for desired tension

Archery female thumb ring Size:20mm Easy to hook string andyou are buying Traditional bow thumb rings made of cow horn. it was hand made by workmanship. you need to check width of your thumb joint as picture posted and choose your size. if you don't know exact your size, buy smaller one and grind inside by sandpaper or grinder. see the link HOW TO CHECK THUMB SIZE. Thumb ring sizes: 19mm, 20mm, 21mm, 22mm and 23mm Material: Genuine Korean cow horn. How to check my thumb ring size Please measured your joint of