This two piece cover is made up of a strut cover and a wing cover. By doing this the wing portion can be left on while in the rack on your boat. Most covers on the market are prone to tearing after just a few uses because of the way you have to slide them on and off over the sharp wings. This cover simply rotates onto the wings, which GREATLY reduces the chances of tearing This cover will fit any and all wing combos with up to a 40” T-bar. Air Chair wing logo on the strut cover.