The inside diameter is a standard size of 1.25" (32mm) for most brands of vacuum cleaners, please check the correct size (inside diameter) This is a brush of high quality with anti-static cloth, PP hair and two foot pedals Suitable for vacuum cleaner brands Bissell, Eureka, Dirt Devil, Rainbow, Kalorik, Vacmaster, Prolux Trian, etc. 2 new functions at the Choice: The brush head is a dual purpose brush with two models for floor or carpet Bristle base for hard floor Metal base for carpet The brush will take good care of floor and furniture around the house without getting tired. This is a great deal on a decent floor tool. Works well on carpet or hard floors. Shipping List: 1 brush Inner diameter: 1 1/4 inch (32mm) Please check the correct inner diameter Applicable model: for vacuum cleaner. Note: Please allow 1-3mm error due to manual measurement.