1.The inner diameter is 35mm, fits all vacuum cleaners accepting 35mm inner diameter attachment2.he switch on top of the attachment is used to get deep into carpet or lift up and go on hard floor.Red anti-static materials on the edges of the nozzle help remove dust and pet hair more efficiently3.Easy to attach and detach Use for wet or dry pickupType:Vacuum Cleaner PartsVacuum Part Type:BrushesModel Number:35mm Vacuum CleanerInner diameter:35mmMaterials:PlasticColor:BlackWorking length:26.6cmWorking width: 8.8cmPackage Contents:1pcs Floor BrushOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.