Ideal for Minimizing Water Leakage for 1/4", 5/16" and 3/8" Glass Shower Doors "U" Shaped Polycarbonate with a 90 Degree Leg is ideal for use with 1/4", 5/16" and 3/8" Glass Shower Doors. The 5/8" 90 degree soft fin leg will assist in sealing between glass door and fixed panel to minimize water leakage. Length: 64 in