The Blimey Box gifts to my two 5 year old grandsons were a huge hit this Christmas. It was the first gift they opened because I wanted them to open simultaneously. I put the first task and a pencil on top of the red box. They both jumped right in knowing they had to solve a code to get into the box. They were ready to delay opening other gifts so they could get going on the challenge. I told them to wait until after other gifts because it might take a while and need some adult instruction. While the adults opened gifts, one of the boys jumped right in to do it all on his own and was so excited that he cracked the codes! The other grandson waited for adult instruction as he was asked and then proceeded to do all of the tasks independently. Both boys were excited to set it up and do another round. I have two happy grandsons and an envious 2nd grade granddaughter who can't wait for 2nd and 3rd grade level sets to be offered. We as a family are huge fans of screen-free play. The Blimey Box is a very high quality tool with exceptional printable materials for educational play. It's a great gift and worth every cent.