Features: Easy to install in just minutes with simple hand tools. The gas spring is strong enough to support medium to heavy objects such as car lids and convenient hands-free barreers.Easy to install and lift on any surface, gas spring keeps medium to heavy objects open This gas spring is universal and fits RVs, cars, boats, buses, and other vehicles. Specifications: Color: Black Material: Metal Extension Length: 12.0 inches (30.5 cm) Compression Length: 7.5 inches (19 cm) Total Length: 12.8 inches (32.5 cm) Rod Length: 4.3 inches (11 cm) Housing Diameter: 15 mm < br> Connecting Rod Diameter: 6 mm Hole Size: 10 mm Note: 51Lbs/227N pressure per gas strut! Please allow 1-10mm differs due to manual measurement. Package Includes: 2 x Gas Springs