Invicta 12 Piece Watch Tool Sizing Kit This universal kit allows you to size watches, switch out bracelets and straps, change some batteries and make minor repairs with ease! The band opener allows you to remove links from the watch band. A case opener helps you open some case backs to observe the intricate components within. Remove pins from your timepiece by using a pin tool and hammer. These items are accompanied by a plastic stand and screwdrivers go with a variety of screws. Brand new, never used