We strive to provide new innovative products to meet the need of the rapidly changing world we live in. Our goal is to provide products made with the finest material and consistent and high quality processes.. Features Plastic construction; Stainless steel spring; Flush your boat engine safely and easily; Transparent body allows direct inspection of water flow; Specifications Model: QL77JC4; Dimension: 3.75″ H x 1″ W x 1″ L; Weight: 0.25 lbs; .