10 year old Oscar will love it. I tested them before packing and sending them to him. They work great. And I think they are perfect for his 10 year old hands. However, they are not intended for adults, I am a woman with busy hands and they fit me well enough. I will add: Today Oscar's mother sent a video saying that he loves her. Here he is waving at them in the dark. He says they are like a rainbow.