They can be stacked, they can be balanced. They can be left alone and gazed upon, or they can handled. What ever you do, they will look great.From a child to an adult, it is the balance game that anyone can enjoy. Since it is a simple form, you may enjoy it as an art object. Place them on your desk or table, and observe. Please see, touch and feel.Details:A set includes 6 blocks (mahogany) and are approx 1.5-2 inches (4-5cm) in diameter, give or take. Wood is organic.. so no two blocks will look alike and every piece has character. Due to the natural wood material, blocks may vary in color, shape and size, but this will only aid in their uniqueness!All natural, super safe oil finish, wood is from lumber scraps from a window manufacturer.All zenblocks come packed in an organic cotton storage bag with a string draw tie.Care instructions:Can be re-oiled when desired. Mineral oil is the best to make stacking easier. If they start to look dull, just give them a fresh oiling and they look brand new OR better!Shipping: Ships via priority mail. More details in store policy sectionReturns: We will make it right, just let us know. We want you to love them.