The armrest and height adjustments with a pin system are among the product's key features. Thanks to its aluminum material, it's a lightweight and durable product. Non-slip rubber feet ensure safe use on wet surfaces. Ergonomic handles ensure comfort even during extended use. Its lightweight aluminum construction makes it easy to carry. Suitable for right- and left-handed use. Height adjustments can be made in 8 stages, and elbow length adjustments can be made in 4 stages, depending on user height. The foldable armrest clamp makes carrying easy. Its non-slip rubber feet, which leave no marks on the floor, provide confidence. 2 PIECES