Mind challenging game Soma Cube was invented by Piet Hein in 1933. Seven pieces made out of unit cubes must be assembled into a 3x3x3 cube. Looks simple but difficult to build the cube. Challenge yourself and your friends. It improves one’s lateral thinking. Ideal family gift and special gift for him. A nice item for the coffee table. Toys of Wood Oxford Limited, based in Oxford UK, specialises in fine quality multifunctional wooden toys with brand name “Toys of Wood Oxford” or “TOWO” and children’s fancy costumes “Fun Play”. All products by Toys of Wood Oxford are exclusively available from Amazon sold by Toys of Wood Oxford Ltd. We do not sale on Ebay or another other market places. All of our products meet the criteria set by the EC Toy Safety Directive and CPSA Standards and tested and certified by International Accredited Labs. We pride ourselves on providing good quality products and first class customer service. We wish our products will bring lots of fun and enjoyment to your children and family.