Made Of Supple Natural Rubber - Slip Resistant And Won't Scratch Floors Easily Cleaned With A Disinfectant Spray Ridged Design Increases Pressure Points To Deliver Enhanced Foot Massage Hollow Core Helps Match The Foot's Contour Creating A Snug Custom Feel Can Be Chilled Or Frozen - Cooling Prior To Use Aids In Reducing Inflammation Packaged For Resale - Full Color Consumer Packaging Enhances Provider Sell-through Complete With Instructions - Includes Instructions For Foot Massage And Big Toe Stretch Small And Lightweight - Portable And Travel Friendly Includes A Biofreeze Sample