This high quality 147 pcs watch repair tool kit suit for both professional and general use, solutions for most watch repair requirementsPerfect set for very common tasks like opening watch backs, watchband adjustment, changing watch batteries, gaskets, adjusting bands and more. Come with a black carrying zipper case for the sake of convenient storage, easy to take care of them and get the job done by anywhereSmall, clean and functional, this watch repair tool kit helps you get your watch problem done at home instead of going for watch repair shops. Perfect for watchmakers, collectors, durable, portable, practical, convenient and very easy to useWatch repair tools can include slotted and Phillips screwdrivers for removing small screws, tweezers to handle batteries and pick up parts, spring pins to attach watch straps and a link remover to size metal watchbands.More complex kits can include watch hand remover, chain nose pliers, a loupe and other items. Adjustable Case Opener - excellent for opening waterproof cases up to 34mmSpring bar remover for strap adjustment/replacementAntimagnetic screwdriver for removing battery covers6 watch strap spring-pins each of sizeUsage: Small screwdrivers serve a number of watch repair tasks, such as removing battery covers, and hobbyists may use them to dismantle a watch for cleaning and repair.Tweezers remove and insert batteries or small, intricate pieces. Some kits include job-specific tools such as a watch-hand remover to transfer watch hands without damaging them.Diameter of Peg of Strap Spring Pin: 1. 5mmWatch Strap Spring Pin Size: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25mmComes with a carrying case: 21cm x 10.5cm x 5cm (L*W*H)colour: As shownMaterial: metal,plasticPackage included: 1 x Adjustable Case Opener;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(Because of weighing products, the number of spring pins may not reach 108pcs, please understand)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 (for watch case 10-45mm diameter ) ;1 x Watch back pry opener (with yellow ergo handle) ;3 x Precision Anti-magnetic Screwdrivers (1.2mm, 1.4mm, 1.6mm) 3 x Pin Punches (0.8mm, 0.9mm, 1.0mm) ;1 x Carrying CaseOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.