These attachments go very well with my Shark Navigator. They don't quite snap into place, but stay attached and won't fall off during use. I know some people said they don't fit, but they do fit my vacuum. The product arrived quickly as described and I am very happy that I bought this nozzle set. It's strong enough to do the job I need it for, and I like the long extensions that allow me to reach corners, radiators, and between cabinets.