mega bloks first builders big building bag dch63 en gbSpark their imagination with the #1 preschool construction toy in the U. S. A. This award winning set of 80 big and vibrant building blocks is the perfect toy for your toddler's little hands and big imagination. You'll love that these big blocks fit and come apart with ease, helping to develop their fine motor and thinking skills as they stack. Best of all, these blocks can be combined with any Mega Bloks toy to extend playtime for hours on end.