This is the second snap circuits set that I have purchased. The first set was a 100 set for my nephew. At our Christmas gathering, my 28 year old son saw the set that I bought for his cousin. He repeatedly asked me about what the name of the toy was. He wanted to buy a set for himself. I beat him to it! I needed a birthday gift for him, (my 28 year old) and the snap circuit 750 was the perfect gift!