The Fitness-Mad 45cm Half Round Roller is made from high-quality EPP (Expanded Polypropylene) which is extremely durable, super strong, very lightweight, as well as recyclable! This roller won't get bent out of shape easily and is ideal for intensive use, either at home or at your gym / physio practice. Benefits Superior durability Extremely lightweight Recyclable Dimensions (L x W x H): 45 x 15 x 7.5 cm Material: Expanded Polypropylene (EPP) Half Round Rollers are perfect for anyone looking to challenge their balance, core stability, or helping to improve body awareness with certain exercises. Use it flat side down for stretching, and myofascial massage, or use it on the rounded side to create an unstable surface on which to work on your balance. At 45cm long, this half round roller adds, and extra challenge by being half the size - ideal for fitting into your gym bag!