Bodi Hut Watch Repair Tool Kit with Strong Storage Case, Microfibre Cleaning Towel and Full Step By Step Instructions (16 pieces) PREMIUM QUALITY - STRONG AND LONG LASTING  Change batteries and mend and adjust your treasured timepieces - saving you time and money. Plus, every purchase is backed with a 100 DAY WARRANTY. UNSURE HOW TO USE ALL 16 PIECES? We supply you with FULL WRITTEN INSTRUCTIONS AND IMAGES giving you guidance every step of the way, from the watchback remover to link replacement. FITS ALL WATCHCASES UP TO A DIAMETER OF 37mm making this compatible with the majority of standard size cases. WHAT COMES IN THE SET? We guarantee youll have every standard industry item required to make battery changes, mend faults, alter bracelet lengths  whatever the problem, youll be able to solve it! SCREWDRIVERS AND PINS ARE VARIED IN SIZE AND TYPE  allowing you to work on multiple sizes and brands  perfect whether youre an avid collector or simply want to help friends and family out as well!