Nesting & Stacking Rainbow block set in 7 different colors and sizes. Perfect Learning toys for your kids.<br> Size--(L)X(W)X(H) 24.5X3.0X13cm /9.65''X1.18''X5.12"(appr.). Material: rubber wood with non toxic wood. Material: rubber wood with non toxic wood<br> Colorful, arched building blocks offer different possibilities than conventional building blocks or planks<br> 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> 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. <br>