The design does work. The "jaws" part has a cut out that simply slots into a unique hook designed into the base part that fixes to the vacuum cleaner. DESIGNED TO FIT EARLY PLASTIC HENRY MODELS ONLY .
Genuine Spare Parts Accessories for HETTY HENRY NUMATIC Vacuum Cleaner Hoover
Hoover Henry Numatic Vacuum Cleaner Hose Clips Storage Accessory Tidy X2 HQ
Henry Numatic Vacuum Cleaner Hoover Tool Adapter From 38mm to 32mm A3
Henry Numatic Vacuum Cleaner Hoover Tool Adapter From 38mm to 32mm
HOSE for HENRY Numatic Vacuum Cleaner Hoover Extra Long Pipe Four Metres 4m