Strauss Yoga Block, (Blue/Grey) and Yoga Block, (Blue/Grey) Made of high-density and sturdy PV foam for long-lasting durability Featuring beveled edges for soft, firm and easy griping, lightweight and non-slip even sweat Make difficult yoga poses accessible to beginners and those with injuries or physical limitations Moisture-proof to avoid growing bacteria. cleans easily with a little soap or detergent to wash away the odors Easy to travel, perfect for at home use and in the studio