The Original TRAVEL ROLLER - The High Performance Portable Foam Roller -The First Travel Foam Roller with hundreds of thousands of happy customers. Premium dual density foam roller Inner core with two removable luxury foam covers. Mesh drawstring enclosures to use inner hollow for storage: for fitness accessories, clothes, water bottle etc. WASHABLE / WATERPROOF Closed Cell foam: Made of Toxin Free TPR- Contains NO: PVC, BBA, phaltates, latex, or rubber (Eco-friendly design) Ergonomically Correct: 4.3 diameter foam roller, firm inner core for deepest precise massage (will not loose shape or form) Stays firm and consistent over time The Original Travel Roller - The High Performance Portable Foam Roller -The First Travel Foam Roller Invented with hundreds of thousands of happy customers.