Joshua & Sons 16 Piece Repair Kit with Watch Sizing Tool 16 piece tool kit includes everything you need for minor home repair of your watches Includes 2 mini Phillips screwdrivers and 3 precision slotted screwdrivers Watch strap holding block and pin remover allows you to size your watch at home Watch case wrench and watch case knife allow you to open the caseback and change your battery 1 metal and plastic hammer, 1 case wrench and 1 long nosed tweezers are included