FOX Air Bump Stop Shock 2.0FOX Bump Stops were created to provide additional bottom out control to maximize the vehicles entire suspension travel. Developed in conjunction with top offroad racing teams to achieve ultimate performance within a compact and light package. The FOX bump stop can easily be setup for any conditions by removing the aluminum Schrader cap and adjusting the internal nitrogen Nitro pressure. The long lasting and replaceable Delrin pad insures quiet operation.travel 5cm,ext. length 24,5cm,col. length 19,5cm,Rebuildable & Tunable,Zinc Finish,price for 1 pcs,