Extra strong for jackets, coats, dungarees, skiwear, boat covers and more. *Product cannot to be sold on any 3rd Party site such as Amazon, Etsy, Ebay or any other 3rd Party sites, unless approved by the manufacturer.* No-sew heavy-duty snap includes large cap with socket and stud with post. Snaps must be attached with tools DRI24P, DRI3 or DRI18-65.