Spark your little builder's imagination with the Big Building Bag, filled with big and colorful blocks. The perfect fit for little hands and big imaginations, these blocks are easy to grip and easy to stack, helping to develop fine motor skills, creativity and imagination. When playtime is over, store the blocks in the reusable bag for easy cleanup. Best of all, the Big Building Bag combines with all MEGA BLOKS® building sets to expand playtime for hours on end.