The 42-Piece Set is a large building set that allows for big and tall creations. Click wheels on and off to create any number of mobile creations. Fully compatible with ALL other Tegu Magnetic Wooden Blocks, they are brilliantly simple and premium heirloom-quality toy that will last for generations. Curiously attractive and perfect for those seeking toys supporting open-ended and unscripted play. Naturally safe: no lead, no plastic, non-toxic, water-based lacquer finish, no small parts and are made from sustainably sourced hardwoods. Details:MulticoloredPackage dimensions: 14.2" x 10.8" x 3.2"42 block in 9 shapesRecommended for ages 1+ years Safe, non-toxic, water-based lacquersContents:4 tall columns4 medium columns6 mega planks6 long planks6 short planks6 cubes2 parallelograms4 short angles4 wheels