Tovantoe Sticker Magic Puzzle Smooth Cube Not matter you're 3, 30 or 90, whenever you pick up a magic cube, you're going to a magic world New springs design: allows you to finely adjusting the tightness of the magic cube, you'll be able to get the speed and smooth cube Professional and excellent performance: cube has great corner cutting, tension adjustable The perfect gift idea: it can foster people's sense of space and enhance your memory Combines high performance designs with good value