Specification:
Material:steel+plastic
Size: Approx. 134x72x20mm/5.3"x 2.8"x 0.79"
Clamps：Round x 3/Flat x 3/Square x 3/Toothed x 3

Features:
Storage case included
Four sets of bits included for different watch case types
Easily adjustable for various case dimensions (20mm to 50mm)
Designed for opening and fitting screw cases on waterproof watches.

Package Included:
1x Watch case opener with 12 bits
1x Storage box