Purchased on Amazon and used a few times, for less than a total of 1 hour. I thought I had a fracture, but I didn't... The Amazon product in question is: https://amzn.asia/d/9pzo7zd The following is AI-generated text: Aluminum crutches suitable for heights of 140-160cm, with non-slip rubber for high safety. - Brand: mugenbo - Size Adjustment: Suitable for heights of 140-160cm - Material: Aluminum - Features: Non-slip rubber - Rating: 4.3/5.0 (147 reviews) Thank you for viewing.