1.Made of safe and quality ABS material (environmental friendly) and non-fading vivid stickers, these speedcubes are flexible (anti-adhesive groove/ tension adjustable), stable and durable.
2.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 speed cubes.
"3.A large-area anti-sticking groove is set in the edge block, which effectively reduces the situation that the contact area is too large, which may cause the Rubik’s cube to sticky. "
"4.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. "
5.The cubes set are brain teasers for all ages, perfect gift idea for birthday, holidays and festivals, for boys, girls, students, adults and the elderly, for beginners and professionals.