This is a High Quality Air Driven Pet Upholstery Tool Designed To Fit Dyson DC07, DC14, DC17 Vacuums. Designed & Engineered By Crucial Vacuum. Perfect for cleaning pet hair off of upholstery. It has a 32mm opening (1 1/4" ) Easy On/Off attachment. This is a generic product designed and engineered in the United States by Crucial Vacuum. This is not a Dyson® OEM product and is not covered under any Dyson® manufacturer's warranty. The Dyson® brand names and logos are the registered trademarks of their respective owners. Any use of the Dyson® brand name or model designation for this product is made solely for purposes of demonstrating compatibility.