LARGE. Replace a corroded or lost snap button in the center connector of a two-piece paddle. Made of stainless steel. Common size for many brands. Fits some Bending Branches fiberglass shafts, older Werner paddles, Carlisle brand Day Tripper and older Carlisle brand fiberglass shaft paddles. Will fit 3/8 inch diameter holes, shaft diameter 5/8 to 1 1/8 inch. A useful part to have in your field repair kit.