The hand2mind Numberblocks Heroes with Zeroes MathLink Cubes Activity Set is a educational toy designed for children ages 36 months to 6 years old. This interactive set includes cubes with number blocks that can be assembled to create different mathematical equations. The product is made by hand2mind and is recommended for young learners to help them develop their math skills in a fun and engaging way. With a compact size of 9.5 x 9.5 x 10 inches and weighing 7.98 pounds, this activity set is perfect for young minds to explore the world of numbers and problem-solving.