13780-05G10 ATV Air Filter Kit For Suzuki Quadsport Z250 LTZ250 With Spark Plug. 1 x 21mm Spark Plug Socket. 1 x 16mm Spark Plug Socket. Type: Spark Plug Socket Wrench. 1 x Spark Plug Wrench. Durable Material: Made from high-strength carbon steel, this wrench is corrosion and wear-resistant, maintaining its shape under intense use.