1. Forged of chrome vanadium steel, strong and durable 2. Surface phosphating black/sandblasting treatment, good anti-corrosion and anti-rust performance 3. Packing list: sleeve x1, short oxygen sensor x1, long oxygen sensor x1 4. Material: chrome vanadium steel 5. Purpose: disassembly sleeve of automobile oxygen sensor 6. Weight: about 723g/set 7. Dimensions: the sleeve (3/8 inch 22mm) is about 8 cm high, the opening is about 8 mm, the short oxygen sensor (3/8 inch 22mm), the height is about 3.1 cm, the opening is about 7 mm, and the long oxygen sensor (1/2 inch) 22mm), the height is about 5 cm, the opening is about 10mm
