Carefree Rafter 7 with Gas Shock Assist. Eliminates the need to re-tension the Rafter when you raise your awning. Tightens your awning while camping and supports the awning roller while traveling. Easy and convenient. Works on all brands. Swing it out from the travel bracket and attach it to the awning roller. Tighten the knob and swing the lever to stretch the Rafter linkage and push the roller away from the RV. Make the canopy as tight as you want. Stores on or inside your RV. Comes with the Automatic Awning Support. (Rafter and ground support sold separately). White with White castings.