1 & 1/4 inches Deluxe Floor Brush. Works with Bissell, Dirt Devil, Dyson, Electrolux, Hoover, Kenmore, Mile, Oreck, Panasonic, Shark, etc. Fits: Uprights that have attachment hoses, most canister vacuums and all central vacuum systems. Inner diameter is a standard 1.25" (32mm) size, allowing this attachment to be used with almost any household vacuum. Twelve inch swivel neck is at a 45 degree angle and can swivel 360 degrees for easy cleaning at all angles and all surfaces. Designed & Engineered by Crucial Vacuum.