General InformationAdjusts to hold roller covers 12 in. to 18 in. long with 1 1/2 in. standard or 2 1/4 in. jumbo diameter, all nap heights. Extra-strength wing nut design, perfect for floors or other heavy-duty applications. Rigid tubular steel frame arms; durable fiberglass-reinforced nylon body. Reinforced threads, Sherlock GT� compatible