Uni-Green Niche Double Recessed Shower Shelf – Black 24"X16" Two Inner Shelves with Divider Easy Install : Amazon.co.uk: DIY & Tools
Neodrain Shower Niche, Stainless Steel Wall Niche 13.1"X25.1"(Inner Size 12"X24"), 2 Layer Bathroom Shelf, NO Tile Needed Recessed Niche Shower for Bathroom Storage, Matte Black : Amazon.co.uk: DIY & Tools
Bernkot Stainless Steel Shower Niche White 24" X 12" No Tile Needed Recessed Shower Shelf Wall Niche for Bathroom Storage Over Mount Installation : Amazon.co.uk: DIY & Tools
5 Easy Steps To Add A Shower Niche (Easy DIY) - Renovation Insider