Plastic Mini Vise for Watch Bracelets is a small palm vise for clamping bracelets or cases on edge. This is a very useful tool for a surprising number of tasks. Body is made of a tough space age plastic. Block dimensions are L 40 mm x W 35 mm x H 23 mm. Maximum jaw opening is 9.8 mm. Relief slots below jaw opening to allow travel of pins when used for removing pins from bracelets. This is a Horotec Swiss product.