Clip on any size Snap-On frame in seconds. Provides full range of dusting positions. Complete 360-degree swivel action allows user to change direction without lifting head and scattering dust. Versatile collar lock allows rigid position if preferred. 1 In. x 60 In. FirmGrip black metal ribbed handle with swivel hang cap will not crack, warp, or splinter; easily sanitized; ribbing eliminates handle slippage.