Amazon.com: Non-Slip Spray (White) for Increased Grip on Fiberglass, Acrylic, Concrete and Tiles – White Anti-Slip Spray Coating for Shower, Bathtubs & Floors : Tools & Home Improvement
Plasti-Kote PKT71021 Anti Slip Paint, 1 Count (Pack of 1) : Amazon.co.uk: DIY & Tools