Instruct: Classify Amazon reviews into positive or negative sentiment
Query: No more cracked Cranium

I was a little skeptical about this insert, but I needed a bump cap that didn't look too geeky. I had to trim it to fit inside my cap, even though the sticker says not to modify it. It makes my cap sit tall on my head, so I actually bump stuff a little more often, the difference being that I don't reach up and find a bloody scalp.Every once in a while I get a good thump on the head, and I just smile because that one would have hurt.