Product Description This glass glazing spline is constructed of top quality vinyl and it is gray in color. It measures .230 wide by .440 in height and comes in 200 ft. lengths. This glass retainer spline is used for the construction or repair of glass and Plexiglas windows. From the Manufacturer This glazing channel is constructed from gray vinyl. You must determine dimensions and thickness of glass to select proper glazing channel. It is 200 Ft. in length and easy to install.