?Electric Motor Car Building Kit?These science kits offer endless hours of fun for young engineers! With 240 pieces and an electric motor, children can build 8 different moving science experiment models. They’ll feel really proud when they make their own robot. | ?Durable Stackable Toy Storage?This box measurement is 14.6”L * 11.9”W * 6”H. The storage box has 14 partition trays that can be placed or taken out according to your purpose and type. The removable tray keeps some of your smaller items neat and organized, and the extra depth allows for larger, bulkier supplies. | ? Family Bonding Time ? Doing scientific experiments together is a good way for parents and children to build a great family relationship. Complete science projects with your kids as their friend and teacher, that