Description: This is a outboard engine oil tank cap with a regular thread. Aftermarket item, good for working out leaks or faults. Thermal insulation, light weight, and strong rigidity. Easy installation, no instruction included. Fitment: for Universal 12L 24L Outboard Engine Specification: Color: Black Material: ABS Plastic Screw Port Size: Approx.5cm/1.97inch Package Includes: 1 Piece Tank Gas Cap Note: 1.Please allow slightly difference due to manual measurement. 2.Color may be slightly different from the pictures because of different screen and light. Please kindly understand