Springlift Black Composite - 10mm Socket - Extended 26.9" - Compressed 15.2"Attwood is partnered with StabilusA(R), the world&&';;s leading supplier of gas springs and related products with over 100,000,000 units in the field. All Attwood springs are made with biodegradable, no-hazard water-grade oil (WGK). making them the marine industry&&';;s most environmentally friendly gas springs. All springs pass ASTM B117, Attwood salt spray, and a 30,000-cycle lifecycle test. Attwood springs come with support to ensure the proper spring for a specific application, including marine, industrial, agricultural, pharmaceutical, food processing, and medical. Specifications: Extended: 26.97 in. Compressed: 15.20 in. Stroke: 11.77 in. End Fitting: 10mm Socket Available Output Force: 30-180 lbs.