I am selling these crutches because I have recovered from a sprained ankle and no longer need them. They are made of lightweight aluminum and are adjustable. The size adjustments were made with screws, making them very safe and easy to adjust. They were used outdoors and at school, so there are some minor scratches. There are no issues with their use, but please refrain from purchasing if you are looking for a pristine product. Size: S Suitable height: 130cm - 175cm - Brand: Crystal Sangyo - Model: Crutches - Material: Aluminum - Adjustable height: Multiple holes - Color: Silver I will ship them via Rakuraku Mercari convenient shipping with simple packaging.