Multiple Options: 20 sets of 5 colors, 4 sets of each color, according to the different colors used to repair the hat button of the corresponding color baseball cap. Sufficient Bulk: 20 sets of baseball cap snap buttons in total. Diameter: 14.5mm/0.57 Inch. Height: 5.5mm/0.22 Inch. Enough for your repair and replacement needs. Quality Material: Cotton buttons are breathable, aluminium button studs are easy to bend and fix, both are perfectly combined, not vulnerable to damage, sturdy and durable. Easy Installation: No sewing required, place the top of the triangle through the hat, place it on the back of the top button and tap it with a hammer for success. Wide Applications: Not only for baseball cap top button repair and replacement, but also for DIY crafts, garment sewing, scrapbooking, knitting and costume embellishment.