The Lightweight Aluminum Crutches are comfortable, lightweight and durably made.The offer a solid and adjustable walking support indoors or out. They are lightweight and compact. With them, you can go anywhere you want to go, with confidence. underarm crutch supports recovery from foot, leg, ankle, knee, and lower extremity injuries. Suitable for hospital or everyday use to support mobility from stress fractures, breaks, casts, surgeries, and sprains in pediatric to senior users. Material: aluminum alloy Product net weight: large 1. 86kg pair Medium 1.74kg pair Small 1.6kg pair Product size: large 134-154cm Medium 113-134cm Small 93-114cm Note: Due to manual measurement, there may be 1- 3cm error Underarm crutch supports recovery from foot, leg, ankle, knee, and lower extremity injuries. Suitable for hospital or everyday use. Lighter than wood crutches, these crutches are strong, durable, and great for those who don't want to lug around heavy wooden crutches.High- material selection, thickened 1. 2mm aluminum alloy material, bearing 300 kg. The overall height is adjustable in 9 steps, and the height is adjusted in two directions to prevent the use of different heights. Completely pre-assembled including tips, handgrips, underarm pads and usage instructions. Quick and easy single button height adjustment in 1 increments. Lightweight, durable, strong aluminum construction for men, women, boys, and girls. It's available for teens and adults. Crutches are suitable for most people 4' 7 to 6' 7 tall. Use buttons to adjust. Height scale helps you quickly calibrate. Lightweight Aluminum:The crutches are made of aluminum alloy material, light and durable high load capacity, can be used for a long time. These crutches are lighter, stronger, and more durable than wood crutches, and are ideal for those who do not want to wander around heavy wooden crutches.