lewo wooden rainbow stacker nesting puzzle blocks educational toys for kids baby toddlers lewo stacking rainbow toy: lewo rainbow blocks are flat that makes standing them up well. the nesting & stacking rainbow block set in 6 different colors and sizes. perfect learning toys for your kids.<br>large size: the 6 pieces nested together measure 10.4" x 5.1" x 1.2"(26.5 x 13 x 3cm). colorful, arched building blocks offer different possibilities than conventional building blocks or planks.<br>inspires creativity: this will be great for creativity, imagination, pretend play, and color/size/comparison recognition. rainbow arches can be pretend as bridge, tunnels, bikes, beds for little dolls... let your imagination free. <br>child safe: made of non-toxic wood and child-safe water based paint. conforms to us toy standard , astm and cpsia safety test approved.<br>rainbow blocks play an important role in kids's life and bring joy and happiness into kids' childhood life. every child love to stack or nest rainbow puzzles or use them as an open-ended toy.