Features:144pcs watch repair DIY tool kit in a handy carry case with a secure zip closure.High quality watch repair tools kit.Adjustable case opener excellent for opening waterproof cases up to 34mm.Spring bar remover for strap adjustment/replacement.Antimagnetic screwdriver for removing battery covers. Stainless steel tweezers for removing and inserting batteries.Specifications:Watch Strap Spring Pin Size: 8、 9、 10、 11、 12、 13、 14、 15、 16、 17、 18、 19、 20、 21、 22、 23、 24 and 25mmDiameter of Peg of Strap Spring Pin: 1. 5mm / 0.059inCarrying Case: 20 * 10 * 4.5cm / 7.8 * 3.9* 1.8inWeight: 554g / 19.53ozPackage List:1 * Case Opener18 * Case Opener Pins1 * Watch Case Opener Knife1 * Stainless Steel Tweezers1 * Spring Bar Tool2 * Spring Bar Tool Spare Tips108 * Watch Strap Spring pins1 * Link Remover3 * Link Remover Spare Pins1 * Watch Case Holder1 * Watch back pry opener3 * Precision Anti-magnetic Screwdrivers (1.2mm / 0.048、 1.4mm / 0.058in、 1.6mm / 0.066in) 3 * Pin Punches (0.8mm / 0.031in、 0.9mm /0.035in、 1.0mm / 0.039in)1 * Carrying Case"