Adaptable tool design: this spark plug wrench works across cars, motorcycles, and small engines, with a precise fit for 21 mm spark plugs. Modernized performance: engineered to reach restricted engine areas, it eases removal tasks and improves workflow with a carefully crafted extended design. Non-slip grip spark plug wrench and socket kit: includes a slip-resistant alloy handle, spark plug socket kit, replacement tools for vehicles, plus a universal joint and extension bar for easy access and removal. Effortless design: quick replacement without auxiliary tools, simplifies installation, supports daily maintenance needs, and minimizes routine maintenance effort. Use scenarios: - Car maintenance in the garage for quick 21 mm spark plug changes - Motorcycle tune-ups in tight engine bays where space is limited - Outdoor servicing of small engines such as lawnmowers and generators with the universal joint and extension bar for access