Fast Smooth Turning Cube Puzzle: Well-engineered magic cubes with good cornering and easy smooth twisting, this 5 pack magic cube bundle provides joyful cubing experience. It's a must-have to your collection of cubes. Brain Teasers: Educational toys combining education & entertainment — solving the rubix cube is a good way for brain training, improving kids' memory, concentration, patience logical thinking, spatial thinking, and hand flexibility. Sturdy & Durable 3D Puzzle Cube: Made of safe and quality ABS material, flexible and stable and environmental friendly, these are rubix cubes that will last. Perfect Gift: Ideal birthday and holiday gifts (Christmas, Thanksgiving, Halloween, Children's Day, etc.) for boys, girls, teenagers, adults and elders, for beginners and professionals. Warranty: Please be assured that our products undergo a rigorous quality inspection. If our products fail to meet your expectation, you can ask for FULL Refund or Replacement. Any questions please feel free to contact us.