1. Easy to carry and easy to operate2. Wear-resistant and durable, environmentally friendly and healthy material3. Ergonomic, optimized material, widely used4. Scope of application: watch repair5. Size: narrow mouth / wide mouth: 4 x 8.5cm, all steel dual use: 12.8 x 1.4cm, green handle dual use: 13.3 x 2.2cm6. Weight: narrow mouth / wide mouth: about 25g, all-steel dual-use: 41g, green handle dual-use: 37g

http://olla.gr/10-pcs-watch-rear-cover-tapping-knife-watch-opener-style-brown-flat-blade-mouth/