Based on a similar design to the Grimm's Rainbow, the arcs in the Grimm's Earth are chunkier and more irregular in profile. Toddlers like to stack, sort and build with the colourful arches. As they get older, they begin to use pieces for small-world play, making caves and dens and tunnels for car chases. The pieces slide together neatly and are all hand-crafted and finished with non-toxic stains in earthly greens and blues. Length 11.5 cm.