The panels are well designed. They should have some sort of padding on the outside top edge where it touches the tire to compensate for the slightly protruding wheel spokes. If the wheels aren't numbered the same on both sides then the plates won't even sit across the wheel. Also the storage bag is a good start, the 1 I received with my set fell apart and the velcro came loose when I opened them Need heavy canvas and industrial stitching. The "anti-slip" pads attached to the bottom also began to fall off immediately. The only reason for 4 stars. You need to make a few adjustments to get everything right. Spend the day with a few test drives.