The BLACKROLL MINI rollers are perfect for traveling as they are small and lightweight. Use them for selective massages of feet, legs, arms, and other small body parts. They can also be used to connect two BLACKROLL rollers to make one large roller. These rollers can be used on a tabletop, on the floor, or against a wall. Also, this roller is environmentally friendly as they are made using an energy-saving production process, and they are free of propellants and chemicals. The German-made BLACKROLL MINI rollers are easy-to-clean, water resistant and odorless.