Westar Plastics Pegr Hooks Garage Tool Storage (Assortment of Pegboard Hooks), Black, Bag of 50 Heavy-Duty polypropylene plastic. Durable, strong and made in the U.S.A Notched hooks that will stay in place 20 j-hooks, 15 l-hooks, 5 big open rings, 5 small open rings, 5 small closed rings Perfect for organizing garage tools or anything that needs hanging Made for pegboards with 1/4" openings. Hooks are 3/16" thick