POWER-WEB is 14" in diameter and weighs sixteen ounces. Its unique patented design allows a variety of exercises to be performed comfortably and effectively. Constructed of high quality rubber with special agents added for durability and strength, the POWER-WEB will last for years (with proper use and care). Beginners, stroke patients, persons with serious hand injuries, establishing range of motion. Made of Non-Latex material. Item also available in Latex-Free. Item also available in Latex. Item also available in Latex combination.