Join these 2 cm by 2 cm blocks with your imagination, and find endless ways to create different structures and patterns. Part of Grimm's "2x2" blocks family, these blocks have a thickness of 2 cm, or just slightly under 1 inch. The set includes 60 blocks in a range of 15 beautiful rainbow colors and an assortment of 15 different lengths.These blocks are compatible with any of the other 2x2 sets by Grimm's. So when you are ready to expand your collection, look for more blocks sets that are built on the same 2x2 scale, which will allow you to construct elaborate and sturdy structures since the compatible pieces will allow extended building possibilities. More 2x2 sets include Four Elements Building Set in Small, the Small Stepped Pyramid and Stepped Counting Blocks, plus the Travel Building Sets To Go including 2x2 Romanesque, Rainbow, and 1001 Nights.About Grimm'sThis delightful toy is designed and crafted by hand in Germany by Grimm's Spiel und Holz Design, who have been manufacturing high quality, imaginative wooden toys since 1978. Inspired by the ideas behind Waldorf education, these beautiful, unique toys are designed with simple shapes, vibrant, natural colors, and a gentle texture that can be enjoyed by both children and adults of all ages.Grimm's creates heirloom-quality puzzles, building block sets, baby stacking towers, rattles, dolls and more. Grimm's toys are designed with the intention of helping children discover and develop their own creativity through simplicity of shapes, leaving plenty of room for independent play and imagination. There are no instructions, and you can do no wrong with a Grimm's toy. Just play, imagine, learn, and enjoy.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.