ZlideON XXL Normal Plastic & Metal Silver 10A-1 Zipper Repair is a quick repair of your jacket, backpack, shoes or bag literally in 30 seconds. It is designed for standard plastic and metal zippers in size XXL. Additional information on choosing the right slider can be found in the description below. ZlideON XXL Normal Plastic & Metal Silver 10A-1 Zipper Repair has a simple and reliable design. It is made of zinc and steel, which guarantees its durability. The slider is silver and is designed for bright zippers.