High-quality stainless steel: The spark plug wrench is made of high-hardness stainless steel, offering wear resistance, corrosion resistance, temperature resistance, and rust resistance. It is durable and not easy to break. The one-piece construction features precision polishing for a smooth, flat surface. Equipped with a non-slip handle for comfortable and secure grip. 16mm/21mm two sizes: This spark plug wrench set includes two sizes, 16mm and 21mm. The 16mm socket has a depth of 27mm, and the 21mm socket has a depth of 25mm. The T-handle is 22cm long with a thickened 3mm socket wall, suitable for most cars and motorcycles. Built-in rubber ring: Each spark plug socket includes a built-in rubber ring to securely hold the spark plug during removal and installation. 360-degree swivel: Features a swivel sleeve allowing access at any angle, ideal for tight or hard-to-reach spaces. Saves time and effort during use. Includes a red rubber handle for enhanced grip and comfort during extended use. Easy to store, identify, and carry. Wide application: Suitable for use on various vehicles and equipment including cars, trucks, motorcycles, lawn mowers, and machinery. Ideal for engine maintenance and repair tasks. Size: 22 x 9 cm Color: Silver and red Package includes: 2 pieces