This CRL Truck Rack Cushion is used on the horizontal slats of a glass rack. It can be mounted on pre-existing glass rack horizontal slats. Made from weather-resistant neoprene rubber, this cushion is non-marring and provides a non-slip surface for supporting the glass. It cushions and prevents glass from slipping, and can be glued or tacked to glass racks. It can also be mounted to just about any surface where glass is to be stored. Just glue or tack this cushion in place for years of use. Must be ordered in increments of 12 feet.