Product Specification: Sponge Size: 12.8 x 7.3 x 3cm Spring Size: Large: 6.8 x 0.7cm, Small: 4.5 x 0.5cm Spark Plug Length: 5.3cm, Wire Rod Diameter: 6.3mm, Wiring Wire Diameter: 13.5mm Material: Stainless Steel Color: Yellow and Silver What You Want: 2pcs Metal Springs, 1pcs Wood Cellulose Fiber Sponge and 1pcs Spark Plug for Briggs Stratton 691859 692211. Application: Speed Control Spring; Lawn mower used for Classic, Sprint, 450, 500 and 550 engines, for Briggs Stratton 691859 692211, with good elasticity, not easy to break. Air Filter Usage Instruction: This is a sponge filter specially designed for Briggs and Stratton engine. It is recommended to incorporate oil into the sponge before use, as this apparently makes the filter more effective in trapping dust particles. Spark Plug Features: The spark plugs are made of stainless steel, which has the characteristic of good thermal characteristics, tensile strength, heat resistance, electrical conductivity, insulation, high strength