While you use the Double Sit Up Bench to strengthen your abdomen and core, the bench will prove to strong and durable itself. It is made from commercial grade material, making it perfect for use at outdoor parks. The bench is designed to be used by individuals who are 13 years of age and up. It is also double-sided, so it allows up to two individuals to use it at once. The Double Sit Up Bench is perfect for anyone who is looking to start a healthier life-style, because it works to strengthen the core muscles, which are important for use by everyone.