The set of items includes a box of 360pcs 6-23mm watch band strap link spring bars and one watch spring bars remover repair tool. Those spring bars with double flange are mainly made of durable stainless steel, specially used for metal watch band strap links, and kept in a transparent plastic box for keeping the different sizes separated and easy to access. The watch spring bar remover is also made of durable stainless steel material, and used to easily remove the watch spring bar and repair the watch band. Features - Color: Silver. - Material: Stainless Steel. - Plastic Box size: 180 * 64 * 12mm/ 7.09 * 2.52 * 0.47 inch. - Size: 10.80X6.40X1.20cm/4.24X2.52X0.47in - Stainless Steel Watch / SPRING BARS with Double Shoulders. - used for Metal Watch Strap Links. - Watch band stainless steel spring bars with double flange, used for metal watch strap links. - Spring bar remover pin pusher with double shoulders. - Used to remove the watch spring bar and repair the watch band. - Spring bar remover / pin pusher with Double Shoulders. - This set has 18 different sizes that will fit most models of watches, and it is easy to install. - Clear see through box make it easy to find the accurate size you need. - Convenient and portable plastic box for easy storage. Package list: 1 * Set of 6-23mm 360pc Watch Band Stainless Steel Link Spring Bars Remover Repair Tools