... quanlity 2).With ISO9001,SGS,ROHS 3 competitive price ,fast delivery Damper for sliding door/drawer damper ProductsNameGas spring/gas ... lift/gas cylinder/gas strutUseBed, Wheel hair,Sliding Door, Tool box, machinery, Automobile,Hospital equipment, Children ... : 1) Nitrogen filled inside 2) Material: Seamless steel,steel 3) Color: silver, black, or other options 4) No noise ...