1. Mirror electroplating treatment and quenching processing make it more sturdy and durable 2. The head is designed with a 360 degree rotation that can be adjusted according to actual conditions, making it suitable for most car models and easy to use with a rotating sleeve 3. Built in rubber ring: When disassembling a car spark plug, the rubber ring can hold the spark plug and take it out together 4. The comfortable handle is integrally formed, using environmentally friendly rubber material for a comfortable grip. Long term homework should not be tiring to prevent slipping. 5. Special heat treated spring, high-quality steel, special heat treated thickened spring, excellent spring, used to fix the head of spark plug socket Clear engraving and convenient use. The size engraving is clear and thoughtful, designed for easy use, solid and durable. Color:Blue Material:Steel Size:16mm/21mm Package Contents: 1 * T-shaped spark plug socket wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.