Used in the corners of triple-track or self-storing type storm windows. A = top width, B = top height, C = bottom width, D = bottom height, if A and B dimensions only indicated then both legs are equal. A - .210 (7/32"), B - .180 (3/16"). Use with corner keys model No. PL14952 and PL14958. White. 20 per pack. No. PL15132: Material: Nylon, For Use On: Corner of Triple-Track/Self-Store Storm, Size: 7/32" x 3/16"