A professional tire screw extractor kit is widely used for household repair, auto parts and machine repairing. Specifications: Material: Chromium-molybdenum steel Box Color: Red, Blue (optional) Package Weight: 818g / 28.85ounces Package Size: 165 * 122 * 50mm / 6.5 * 4.8 * 1.97in Packing List: 1 * 17MM Twist Socket 1 * 19MM (3/4") Twist Socket 1 * 21MM Twist Socket 1 * 22MM Twist Socket 1 * 12MM Straight Rod 1 * Storage Box