Feature:1. Special designed for opening watch back case, select the suitable dies and install on the watch opener machine to open the watch bottom cover.2. There are many models, can be applied to most of the watches on the market, strong applicability and easy operation.3. One of the professional watch repairing tools, suitable for repairmen and amateurs to save expensive repair costs.4. Complete accessories including square shape, arc shape and rectangular shape watch cover opener dies of the package.5. Come with exquisite storage box, making the storage more convenient and ensuring that your items are not easy to lose.How to Use:Select the suitable dies and install on the watch opener machine to open the watch bottom cover.Specification:Item Type: Watch Back Opener DiesMaterial: Plastic, composite woodBox Length: Approx. 27cm / 10.6inBox Width: Approx. 12.5cm / 4.9inBox Height: Approx. 4.8cm / 1.9in(manual measurement, please allow a little error)Applicable People: Watch maintenance professionalsApplication Scenario: Used to open the back cover of different models of watches Package List:1 x Storage Box 2 x Screw 12 x Plastic Square Shape Die1 x Plastic Arc Shape Die1 x Plastic Round Shape Die1 x Alloy Square Shape Die1 x Alloy Rectangular Shape Die1 x Handle 2 x Gold Tip4 x Plastic Tip26 x Black Tip2 x Silver Tip2 x Alloy Round Shape Die