It seems that this could be a worthy product. However, I mistakenly did not examine the item closely when it arrived. Then a few months later, when I was ready to use it, I found a loose screw and a missing screw under one of the clamp assemblies. Some form of threadlocker was also found on the loose screw, as if it was an attempt at repair. Although I'm sure the warranty has already expired, I'll try to contact the seller to resolve the issue and update. this review if anything changes. Update: great supplier. Handled the situation with full professionalism.