1. Overall high temperature quenching treatment, high hardness, wear resistance, long life, easy to use 2. Tire air tube, easy to use, high hardness of alloy/plastic, more efficient inflation 3. Suitable for cars, motorcycles, electric vehicles, etc. 4. Adjustment range: 23-190mm 5. Alloy material, multi-purpose adjustment, easy to use 6. Format: formula 7. Material: chrome vanadium steel 8. Size: right-angle: 21 x 2.5 x 9.7cm, angled: 21 x 2.5 x 9.5cm, three-claw: 9 x 9 x 6.7cm, four-claw: 19.3 x 19.3 x 6.7cm 9. Weight: right angle: 601g, right angle: 576g, three claws: 740g, four claws: 980g