This project was inspired by the surprise of opening presents from Santa. For children, unwrapping a gift is full of joy and excitement. With Santa's Gift Box, a playground is packed into a box that when opened creates a special play experience for children. Each playground “gift box” contains two unit boxes, and each unit box is composed of five functional blocks. The functional blocks are directly transported to the designated location and can be used as soon as they are opened. Each functional block can fuse with other blocks while maintaining their own characteristics.