What's in a barrel? Another barrel! And inside this one? Another barrel again! Nesting & Stacking Barrels Manipulative Set brings 5 colorful toy barrels to play and refine motor skills. Tots will love nesting the colorful barrels into each other, finding the right sizes, and building a tower of barrels with this manipulative activity set by Ryan's Room. The biggest purple barrel from this Nesting & Stacking Barrels Manipulative Set measures 3.75 inches tall and 2.5 inches in diameter. Build and stack, nest and find these manipulative barrels from Educational Toys Planet.