lmao... drew that sticker on the prop is funny. When I first go into this hobby and seen that I was looking in the bag wondering if they put the instructions in the bag. lol.. just kidding. I was wondering why the heck they put that sticker on the prop. I did find out today however on the prop the thin side. A good tip so you don't tear your fingers or hand up. take a knife and lighty shave off the sharp edge. However when you are done with that make sure you rebalance your prop.