Grimm's Small WaterWaves Nesting Wooden Blocks Stacker, "Elements" of Nature: WATER Small set of Waldorf-inspired Waves represent the element of Water. Set of 5 pieces nest together perfectly because they are carved from a single piece of solid wood. Waves can also be stacked one on top of another, or added to any other building set. This is the Small size: measures 5.1" long x 1.6" deep x 2.2" high. Children will create imaginative ways to play with these blocks: they make bridges, gates, hills, houses... let your creativity lead!