DescriptionBy using this case opener, you can easily open the case back to your watch. if you are a professional watchmaker or you just want to change the batteries in the watch without the hassle of taking your watch all the way to a jeweler, this solid metal key allows you to remove the from your clock to do the job.Feature- Color: Golden - Material: Metal. - Size: 16x3x2cm - Can open the watch lid with ease. - Suitable for opening watch bottom cover and replacing batteries. - Special movable screw-plug back cover of watch, easy to use, easy to carry. - Professional watch fixing and repair tool, durable. - quality watch fixing tool, watch changing battery. - Warm tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight difference in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!