Longbowmaker Premium Handmade Archer's Thumb Ring ST good for protect the archer's thumb from arrow while the player is shooting (these ring have been handmade to the finest quality) suit for the Eastern traditional archery; for example, Korean, Chinese, and Mongolian style robust as same as other materials and hard to brittle premium hand made from Longbowmaker with various size of thumb ring SKU:ST4(19*22)