Age: 18 months to 4 years Year released: 2013 What makes it a quality Montessori toy: The Melissa & Doug Rainbow Stacker features ... a thin long cushion and two triangular support pillows.

Strawberry-scented erasers, robot-shaped markers, necklaces with charms that look like gummy bears, kaleidoscopes, butterfly nets, and a rainbow of stickers, bouncy balls, bath toys, plastic ...