Description: Package includes 360pcs watch band strap link pins, in 18 different sizes, and each size 20Pcs. Made of high quality metal, durable to use. Length of pins: 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23mm. Suitable for watch band strap replacement, watch repair, jewelry making, and etc. Portable, practical, convenient and easy to use. Those watch link pins are kept in a transparent plastic box for keeping different sizes separated and easy to access. Specification: Material: Metal Quantity: 1 Case (360pcs) Kinds: 18 Different Sizes Color: Silver Model: Stainless steel spring bars Size: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm. Size Chart: 11x6.5x1.5cm/4.33x2.56x0.59inch Package Includes: 360 Pieces Watch Band Link Pins 1 Piece Storage Box(3 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!