CRL Track Vinyl is designed to hold 3/16", 7/32" or 1/4" (5, 5.5, or 6 mm) glass securely in H-Bar on sliding track assemblies. These popular vinyls eliminate the need of wrapping the glass with various setting tapes to assure a tight fit. When the glazing is completed, all that remains visible is a neat "bead" that gives the framed glass or other glazing material a finished professional appearance. Made especially for use on shower doors. Light gray vinyl is compatible with finishes of sliding track.