1. Compact bike repair tools£¬ easy to carry£¬ good assistant for cycling on the road. 2. Suitable for 6 - 17mm bore diameter screws. 3. Can twist nuts and bolts. 4. Zinc alloy material£¬ rust-proof. Material: Zinc alloy Specifications: 6-17mm 10 holes Use: bicycle repair Features: twist nut or bolt with a certain size 1 x Wrench