The JR Products GSNI-5300-40 Gas Spring has plastic ends with locking clips to receive ball mounts. These gas springs incorporate a strong annealed steel rod with a Nitride coating for added corrosion resistance.

For use on cargo doors, RV beds, doors, and truck caps for ease of loading and unloading.
Replace your gas spring/prop by matching its length and force as close as possible.
Will work with other brand mounting brackets such as RV Designer and AP Products.
The gas spring contains petroleum-based lubricating oil.
Output Force: 40 lbs.
Compressed Length: 11.41".
Extended Length: 20".
Attaches to a 10mm ball.
Stroke: 8.59".
Rod Diameter: 6mm.
Tube Diameter: 15mm.
Weight: 3 lbs.
Limited Lifetime Manufacturer Warranty.

JR Products Gas Spring, 11.41 - 20", 40 Lbs Force