Grey Glazing Channel for window glass, plexiglass, acrylic etc. - This is also called a vinyl glazing boot insert. GRAY GLAZING BOOT, VINYL, Model # TA-L-GRY , Item Minimum is PER ROLL of 100 Lineal Feet - COLOR GRAY ONLY. For easy installations of glass, plexiglass, acrylics etc. - vinyl is 100% extruded virgin vinyl used to repair, re-glaze windows.