Cen-Tec Systems 92961 Universal Vacuum Attachment Set Works with most models of Bissell, Dirt Devil, Dyson, Electrolux, Hoover, Kenmore, Oreck, Panasonic, and Shark vacuums Made in the USA Compatible with major brands of central vacuum, including beam, Nutone, electrolux, Hayden, VacuMaid, Aggressor, Vacuflo, MD, Canavac, Cyclovac, air vac Inner diameter of each tool is a standard 1.25 inch Versatile set of attachments is great for vacuuming furniture, stairs, window blinds, and tight corners