I purchased 2 of these, one for my son and one for my nephew for to go with his birthday presents, as they were spiderman fans and loved helicopters. What a brilliant gift I thought - instead....what a complete disaster and disappointment. They do not work! The kids couldn't use them (they are 5 years old) and even the adults couldn't get them to work! They warn you to watch your fingers (tell that to a 5 year old) but no matter what you do, you can't. At some point they will get caught in it when you pull the string and believe me it hurts! I suffered a bruised nail from it when it snapped back and hit my finger. The kids disappointment was the worse part, they were soo excited to go outside and try them. Instead I had apologise and went straight out to a store to buy them new gifts to make up for the cheap and nasty ones I ended up getting. I don't believe for a second the 5 star reviews on this item are made on the correct item. I could understand if 1 was faulty, but 2 emphasises that this toy just does not work and is definitely not worth wasting your time to spend money on it. Of course this is just my opinion.