Gentle 50N/5KG supporting force with built-in buffer, prevents tailgate and storage lids from slamming hard and scratching surfaces. 240-320mm standard universal length, matched standard connectors for car boot, cabinet, bed and small flip covers. oil-leak free, stable performance after long-time daily opening and closing. Chrome-plated piston rod, wear-resistant and suitable for indoor and light outdoor use. Easy DIY installation, direct replacement for old support rods, multi-scene universal hydraulic gas strut.