I purchased this item but didn't know how to use it, so it's an unused item that I only opened. The retail price is 24,840 yen. Product Name: INFINITY TRAINER BODYWEIGHT TRAINING SYSTEM How to Use: Training system using body weight Features: Enables a variety of exercises Installation: Can be installed on a door frame Accessories: Training straps 【Training System】 The INFINITY TRAINER is a system for training using your own body weight. It allows for various exercises and can be used to train your entire body. 【Easy Installation】 It can be easily installed on a door frame, and no special equipment is required. You can easily train at home. 【Variety of Exercises】 With this system, you can perform exercises targeting various muscle groups. It supports a wide range of users, from beginners to advanced users.