For Use with 3/8" and 1/2" (10 to 12 mm) Monolithic Tempered Glass Dimensions: 11/16" W x 1/2" H Stock Length: 118" (3 m) Available in Satin Anodized and Matte Black Finishes CGS Series Bottom U-Channel is used with CGS Series Sliding systems as a support for fixed panels on the floor. It provides a minimal finished look. Made of aluminum, it comes in 118" (3 m) stock lengths. Product Warning: Stock lengths must ship common carrier unless specifically cut for UPS shipment.