Towel Hooks
From Amazon
Croydex Over Door Multi Robe Hook - Coat Hooks for Door, Easy Install Door Hanger, Durable Chrome Plated Door Hook, Fits up to 40mm Doors, 4 Hooks, 19x38x7.5cm, Rust Free 5 Year Guarantee
Wickes
Croydex Over Door Ball Hook Multi Hook - Chrome
Showerstoyou
Croydex Over Door Ball Multi Hook