Medical Crutches Product Description NINE ADJUSTABLE POSITIONS COMFORTABLE AND WEAR-RESISTANT FIRM AND RELIABLE PLEASE READ THE PRODUCT INSTRUCTIONS TO USE Elderly people Inconvenient legs Disabled lower limbs Rehabilitation This product is suitable for the use of the elderly,weak and slightly powerless people, people with minor lower limb disabilities and other people. BIDIRECTIONAL MARBLES A KEY RETRACTABLE Lightly press the ball, you can adjust the length of the walking stick RUBBER ANTI-SLIP FEET Wear-resistant and non-slip feet to enhance the protection of the elderly