SMC® Roof Rollers are a piece of versatile equipment most often used to reduce the friction of ropes running over edges of all kinds. Roof Rollers have lightweight aluminum frames that are welded and then powder coated bright yellow for visibility, durability, resistance to corrosion and abrasion protection. The sheaves are paired in a unique frame design for secure placement over an assortment of edge structures. The flat base works equally well in either a horizontal or vertical configuration to meet the particular constraints of the rescue or work environment. Applications include Rescue, Theatrical Rigging, Mountaineering & Caving, Utilities, Fire Departments and more. SMC Roof Rollers may also be used to protect fire hoses, air supply and communication lines passing over sharp or otherwise abrasive edges.