HG permanent anti-slip - Tiles and Natural Stone - CleanStore
SlipDoctors Stone Grip Non-Slip Treatment Clear Flat Interior/Exterior Anti- skid Porch and Floor Paint (1-Gallon) in the Porch & Floor Paint department at Lowes.com
HG Permanent Anti Slip 500ml - for Ceramic Tiles Natural Stone and Enamel Baths for sale online | eBay