1The right angle on the base make it strong, so it's not easy to fall. 2Made of aluminum alloy material, so it's light in weight, easy to move. 3It is foldable,and the height can be adjusted freely, which makes it convenient to store and carry. 4Suitable for nursing homes and home care, for there being lots of patients. 5There are 4 hooks on one pole, allowing many people to use one .