Let's rock with the Stacking Stones! Handcrafted using responsibly-sourced beechwood and nontoxic pigments, this set features 14 wooden blocks for stacking, ordering, making arches, building mountains and balancing towers. Seven of the blocks are unique to each set – making every purchase one of a kind! Hold the smooth stones in your hands and deepen your connection with nature, or incorporate them into other Montessori-inspired play environments for added dynamic. Watch as little ones gain self-esteem, develop fine motor skills, stimulate their imagination and improve concentration during play. Balance, create and stack to your heart's desire – no assembly required! Weight & dimensions: 1.36 kg (3 lb). Lg: 10 x 6.4 x 3.8 cm (4" x 2.5" x 1.5"), Sm: 6.4 x 3.8 x 3.2 cm (2.5" x 1.5" x 1.25"). Suitable for ages 24 months and older. Available in natural and rainbow.