... Glass wall,Floor system 30m Large Aluminum Frame Roof Top Car Tent Both Aluminum frame and steel frame are available -Specification1 ... 18m,20m,25m,30m,40m,50m,60m and so on.2.Length: can be extended by 3m or 5m without ... cement or tarmac ground, the expansion screw would be needed.2) on sand and grass ground, the ground anchors would ... -15914441525Contact: Daiven 30m Large Aluminum Frame Roof Top Car Tent