Stacking is fun! These beautiful beechwood stacking stones are irregular shapes with unequal sizes and corners. This encourages patience and problem solving as children develop their fine motor skills and concentration balancing them on top of one another. The jewel-like stones can also be used during loose parts play or storytelling.Pack contains: 20 pieces of varying shapes sizes and colours Largest stone 37mm Smallest stone 23mmAge suitabiilty:3 Years+