Sixty geometric wooden blocks in bright colors by Grimm"s Spiel und Holz. These are by far some of the finest blocks available anywhere. They are wonderfully, vibrantly colored with all natural waterbased colors. Since they are not varnished, they will not easily slip off of one another when building. This set comes in a mesh bag for easy storage. With their varied, geometric shapes and sizes, children will love constructing all kinds of buildings with these beautiful Rainbow Geo Blocks. The brightly colored wooden shapes help children learn about balance while fostering creativity as building materials for houses, towers, villages and cities. These blocks are sanded by hand, so there are no edges or corners. Comes in a cotton mesh bag for easy storage and transport. SIZE: Smallest Piece is 1¾" Long Longest Piece is 5¼" Long Block Thickness: 1 cm, 2 cm and 4 cm. Note about Grimm"s colors: You may notice some color transference on the blocks or some slight discoloration. This is not considered a defect as the blocks are unlacquered. Grimm"s uses 100% natural, water-based stains for an unvarnished finish, in order to preserve the natural look and feel of the wood (which is in line with their aim to design toys according to principles of Waldorf and Montessori education). Unlacquered blocks are also easier to build with as they are less likely to slip. Grimm"s toys are designed to help children discover and develop their own creativity while leaving plenty of room for independent, open-ended play and imagination. Many blocks in this set are on a 4x4 scale, allowing them to combine seamlessly with other sets with base measurements of 4 cm in thickness. Expand this set in the future by adding any of the other beautiful 4x4 large building sets from Grimm"s such as the 1001 Nights, Romanesque or Montecarlo Curves Building Sets.