Super heavy duty. White finish. Projection, 2 3/4 to 4 1/4 inches. Clearance 2 to 3 1/2 inches. Graber super heavy duty features include a universal front loading end bracket, metal adjustable and reversible master carriers ball bearing end pulleys, a spring loaded side gate for adding or removing slides, molded, canted slides, can be converted to one way draw, scored center support base for easy mounting on narrow casings, universal cam lock stirrup, braided polyester cord, and angled tip on overlap arm.