Merchant & Mills Flat Corozo Buttons 20mm Merchant & Mills Flat Corozo Buttons 20mm $0.75 Default Title - $0.75 Quantity This product is currently sold out. Please fill in the form below if you'd like to be notified when it becomes available. Description 4 hole corozo button, 20mm. Corozo is a 100% natural product which is similar in consistency to a hard resin. It is made up of a very tightly wound organic fibers which give it excellent durability and scratch resistance.