Suitable for the elderly, soft hands and feet, walking difficulties and rehabilitation exercises The height of the 18-position of the leg is adjustable, suitable for people of different heights and needs (some errors due to different production batches); Equipped with adjustment buttons on both sides, press to adjust the height freely Material: It is made of thick aluminum alloy and safety mechanics design. It is solid and firm, waterproof and moisture proof, light in weight and strong in bearing capacity. One-button folding design, practical and convenient, can be folded by pressing the lock. Save space and be easy to carry.