Features: EASY TO USE: Adjustable Case Opener, excellent for opening waterproof cases up to 34mm, Spring bar remover for strap adjustment/replacement, can be set in different positions for different size cases. COMPLETE WATCH REPAIR TOOLS:147PCS watch repair kit includes anti-magnetic screwdriver for removing battery covers and anti magnetic stainless-steel tweezers for removing and inserting batteries. Completed watch repair tool, good helper to your watch. LIGHTWEIGHT & DURABLE: Small, lightweight, easy to use and durable. If you like to have a portable tool kit that is small, clean, and functional, this kit will be ideal to open and work on your watch anyplace that you want. EASY TO CARRY: Portable handy box set design, easy to carry. It can be used for repair clock, watch, wristwatch. etc. With a box of high-quality package for storage and convenience. Package included: 18 x Adjustable Case Opener Pins; 1 x Watch Case Opener Knife; 1 x Stainless Steel Tweezer; 1 x Spring Bar Tool; 2 x Spring Bar Tool Spare Tips; 108 x Watch Strap Spring pins; 1 x Hammer; 1 x Link Remover; 3 x Link Remover Spare Pins; 2 x Link Remover Spare Pins (golden) ; 1 x Watch Case Holder; 1 x Watch back pry opener (with yellow ergo handle) ; 3 x Precision Anti-magnetic Screwdrivers (1.0mm, 1.2mm, 1.4mm) ; 3 x Pin Punches (0.8mm, 0.9mm, 1.0mm) ; 1x Carrying Case : 20.5X 10X4.5cm (L*W*H) Multi-functional Great kit for beginners and everyone trying to get into DIY watch repair ! Watchband Remover Removing spring bars from watch strap and band. Spring Bar Tool Removing spring bars and watch band lugs Precision Screwdrivers Removing battery covers, and hobbyists may use them to dismantle a watch for cleaning and repair. Each of size watch strap spring-pins Antimagnetic stainless steel tweezers for removing and inserting batteries Jaxa Type Watch Case Back Opener – excellent for opening waterproof cases up to 37mm Comes with a black carrying zipper case More Caring Details Diameter of Peg of Strap Spring Pin: 1.5mm Watch Strap Spring Pin Size: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25mm Sweet Tips: Please use the right way to operate. Remember not to force too much , avoid injury the watch.