The oil within the cylinder, when it is compressed or extended, moves from one side of the piston head to the other, providing a damping effect. Removal TIP : it is very easy to replace most gas springs / shocks/ struts, the most common connection used is the nylon “ball joint socket” to remove your old unit simply insert a “flat” blade screwdriver under the spring clip (you do not have to remove the clip) using the slot provided in the back of the socket, push the screwdriver down just a bit this causes the spring clip to open and it will release the ball end.

Material: Steel
Interchange Part Type: Stabilus Attwood Suspa Lucid SPD IGS API Columbia
Other Interchange Part Type: AVM Spring Lift Master Lift Bansbach Easylift Ace
Type: Struts
Other part Number: Gas Spring Prop Strut Shock Damper Lift Support
Part Brand: Nitro Prop Strut and Spring
Attachment Method: 10mm Ball Stud or Bracket Mount
Interior / Exterior Part Type: Door Lid Hatch Lift Spring Prop Strut Rod Support
Color: Black Nitrate Coated Rod and Tube
Manufacturer Part Number: NP1720-20-8 811a1
Product Type: Door Lid Lift Spring Prop Strut Rod Shock Support Damper
Part Type: Gas Spring Strut Shock Lift Rod Tube Cylinder
Brand: Nitro
Other Part Fitment: Camper Topper Shell Lid Hatch Door Bed Topper
Other Type: Nitrogen Gas filled Spring Strut Shock Lift Arm