615•1.D. between rails • Solid steel bullnose and hook at both ends • 4'diameter rollers, 4-1/2"long • Length, Width and Height - see chart above Standard Color Choices* Mode Gray ■ ■ ■ Black Teal Med. Blue ■ Dark Blue Med. Given Dark Green Cream Yelow ■ ■ ■ ■ ■ ■ Orange Red Burgundy Bro