Adjusts to hold roller covers 12 Inch to 18 Inch long with 1 1/2 Inch standard or 2 1/4 Inch jumbo Diameter and can be used with all nap heights * Extra strength wing nut design perfect for floors or other heavy duty applications * Rigid tubular steel frame arms and a durable fiberglass reinforced nylon body * Reinforced threads and is Sherlock GT compatible * Uses either R087 or R088 endcaps.