I had previously bought a pair of these crutches and was completely happy. However, the most recent pair I bought has a pronounced engineering flaw. The grips do not fasten securely to the crutch main support. In other words, they wobble while in use. To me, this is a safety issue or maybe I just got a bad pair of crutches from the distributor. Anyway, I intend on calling the manufacturer to discuss the issue.