Features: The lightweight aluminum alloy material is durable and improves the overall performance of the shock absorber These are made from 6061-T6 aluminum alloy, are ready for installation. Specification: Item No.: 283004 Product Name: Shock Absorber Brand new: Yes Package Quantity: 4pcs Weight: 60g Total Length: 80MM Length of Hole to Hole: 72MM Package Include: 4pcs 80mm Alloy Shock Absorber Note: Oil filled type(oil not included, you can choose the suitable oil by yourself from the market).