Number Transforming Toys: Each number can be converted into the corresponding military model.It also can transform from numbers to a combiner robot. Let your kids learning from playing Robots Transformers toys: There are 4 robots available for those symbols like "+" "-"etc.and all number can combined into 1 big cool robot. Mini Size: 2.16inch*1.95inch suitable for most 3years up kids. and easy to carry out while camping or vacation Durable Material and Safety Design: Toys adapt durable ABS plastic, Not easy to damage, reusable and environmentally friendly. The corners of the letters are designed to be smooth, allowing children to enjoy their learning time. Great Gift: it's perfect for Alphabets, Numbers,Preschool Learning, Holiday Toy Gifts, School Classroom Prize, Treasure Box, Teacher Treats, Easter Gifts, Birthday Gifts. Packing 1 x Robots Transformation Building Blocks