Instruct: Classify the given review into positive or negative sentiment.
Query: I feel 100% tougher simply by having these on my bike

I bought a pair of these for my Honda Shadow, and they look great. The eyes don't really reflect too much, but that's okay: when Harley riders see these skulls on my plate, I know that they tremble in fear of my 750 cc of power. Sure, they don't hear me coming, but once I do manage to pass them, buzzing like a high-end chainsaw, the very sight of these skulls command their respect.I took one star off because I wasn't sure if they were tightened down properly, the bolt is not welded into the skulls, it can actually screw out completely, so you have to make sure that the bolt is all the way into the skull and tighten the nut in the back carefully.