1. materials: the body of this product is made of highquality aluminium alloy and PC, which is strong, durable and not easy to deform. High load capacity: it has been stamped in one piece, and the toilet seat can carry up to 150 kg / 330.7 lbs without shaking. 2.3in1 function: toilet arm and toilet booster and toilet seat, all in one, giving this product great functionality and allround care for the elderly. This also saves cost on other products. 3.Ergonomic design: the ergonomic design of the unit has humanised grooves that fit closer to the body and reduce strength, making the user more comfortable. 4.Suitable height: compared to traditional toilet seat heights of 3840 cm, it uses an increased golden 11 cm height, making it suitable for most elderly, pregnant women and people who are recovering from surgery. 5.Safety guardian: It helps prevent pain as it eases the effort on the knees and hips and effectively reduces knee injuries. It is perfect for helping people maintain balance and support the disabled, elderly, seniors, disabled and children so they do not slip and fall.