Tinksky Watch Band Pins Spring Bars 360pcs 8-25mm Stainless Steel Link Pins Color: mainly silver. Material: durable stainless steel. 360pcs 8-25mm Watch Band Stainless Steel Spring Bars Link Pins Spring Bars Remover Repair Tool Set 360pcs watch band spring bars in 18 different sizes, and each size includes 20 pieces: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm. Those watch link pins are kept in a transparent plastic box for keeping the 18 different sizes separated and easy to access.