Fast Smooth Turning Cube: Well-engineered magic cubes with good cornering and easy smooth twisting, this 9 pack magic cube bundle provides joyful cubing experience. It's a must-have to your collection of speed cubes. Brain Teasers: Educational toys combining education & entertainment solving the speed 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 speed cubes that will last. Perfect for Kids: Ideal birthday and holiday presents(Christmas, Thanksgiving, Halloween, Children's Day, etc.) for boys, girls, teenagers, adults and elders, for beginners and professionals. Quality Product & Service: 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 question please feel free to contact us.