SMALL. Replace a corroded or lost snap button in the center connector of a two-piece paddle. Made of stainless steel. Not the most common size. Fits some Mohawk and Aquabound brand paddles. Will fit a 1/4 inch diameter hole, shaft diameter 7/16 to 7/8 inch. A useful part to have in your field repair kit.
Please note: The Seven2 ISO paddle takes a 3/16 inch snap button that will be difficult to find. This button is very close but the hole in the paddle shaft will need to be enlarge with a rat tail file.