1. Material: aluminum alloy 2. Product application: for use with standard Schrader valves, removable Presta tubular tires, and Presta extension rods. Compact and portable for easy use. 3. Removable Schrader and Presta valve cores, with a rotatable switch head to eliminate the need to carry multiple tools. 4. Assembly and disassembly leave no marks and damage the valve. 5. Laser-cut aluminum alloy, one-piece molding for durability and effortless rotation without slipping. 6. Hexagonal prism design for efficient use. 7. Weight: 9g 8. Length: 54mm
