The Bomber Gear Neck Gasket Repair Kit features the same premium gasket found on Bomber Gear dry tops. This kit comes with one neck gasket, 1 oz of Aquaseal, and instructions. The gasket size is based on the size of the top it is going in to. For a L, XL, or 2XL top, order a L gasket kit. For a small or medium dry top, order the corresponding small or medium kit.