1pc Screwing Ball Type Watch Friction Sticky Back Case Opener for Watchmaker Watch Repair Tool Random Color

100% Brand new and high quality
Innovative back case of watch repairing tool, enable you to open watchcase easily, precisely and safely without scratches.
Its smart design allows it to fit and evenly grip the surface, giving it more strength yet never scratching your watch.
Easy to use, simply squeeze, press, then screwing
Perfect for any toolkit whether you're a professional watchmaker or a hobbyist
This is a watch repair tool, not a toy ball (maybe you can make it as a tool and a toy), only use to open the screwthread back watchcase.
Color: we have many other colors, and we send the item by random.
How to use the opener ball?
Push and squeeze the ball, make friction between the ball and the back case, and then rotate the ball to the case "open" direction.
This tool does not like other metal opener tool, it will never scratch or damage your watch.
Specifications:
Color: (Random)
Material: Rubber
Diameter : 7 cm
Weight: 40 g
Quantity:1 psc
Package Includes:
1* Back Case Opener Ball