Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Overrated..

While they do a decent job when they're new, In a matter of about an hour I managed to completely destroy the left guard. I ride flatland bmx, and broke my hand twice this year, so as a precaution I bought a pair of these and as I said.. They do a great job of protecting your wrist when they're new. The plastic skids, and reinforcements are in great positions, they're comfortable to wear, but the vinyl/cloth/neoprene or whatever is very poorly constructed and will not last. Now again I'm a flatlander not a skater or regular bmx'er, so my hands/feet see more wear than anything, but they still will not last very long, fortunately they're fairly cheap to replace.(cause you'll be doing that often)