Compat Sit Up Trainer, Space-saving core trainer at home! No more bulky equipment when you want to start your work out! Introducing Compat Sit Up Trainer! Simply insert the belt of trainer under the gap of door, can easily lock the trainer in your door! Start your work out exercise ANYWHERE! ANYTIME!, Soft padded cushion covered the foot locking part which ensures a secure grip and reduces the risk of injury. Compat Sit Up Trainer can support up to 130kg, perfect for holding you in a correct posture while you are doing exercise to train your waist and stomach! Light-weight and easy usage makes it ideal for home use without anyone helping!, SPECIFICATIONS, PACKAGE INCLUDES