1. Made of stainless steel materials, durable
2. Specification: 7/8mm
3. 7mm: used in the part where the brake caliper has a vent screw
4. 8mm: use 8mm oil pipe screws on the brake handle or brake caliper
5. Can be packed in a bag to prevent sudden bicycle accidents
2. Specification: 7/8mm
3. 7mm: used in the part where the brake caliper has a vent screw
4. 8mm: use 8mm oil pipe screws on the brake handle or brake caliper
5. Can be packed in a bag to prevent sudden bicycle accidents