We bought the cube from the company www.cubezz.com. It was real scam, ‘coz they delivered broken one and we paid for the return postage on our own. After that we waited 3 weeks and heard only promises, but recently we got the reply that such cubes were sold out. The seller offered to wait for new one or to get refund. We agreed to refund, but still haven’t received it. So be careful if you use this website or leave comments if you have horrible experience with this seller.