PROFESSIONAL SPEED CUBE SET: This Vdealen speed cube set includes 6 pack same size 3x3x3 cube, standard size and suitable for both beginners and professional players. DURABLE, SMOOTH AND WATERPROOF: This magic cube set Improved anti-pop technology and structure for extremely fast and smooth cornering, durable design and adjustable. This cube also waterproof, to prevent wear and tear. PUZZLE CUBE TOY SIZE: This 3x3x3 cube is standard size 56x56x56cm, 87g for each one which is small and exquisite, convenient to carry and keep, to satisfy different cuber\u2019s demand, even it's a little baby also can easy carry it. RECYCLABLE MATERIAL STICKERLESS: This puzzle cube set is made of non-toxic ABS material and long lasting stickerless. It's harmless for children's health. Let's play in safe with your children. BEST GAME FOR PARTY: This puzzle party toy is a great gift for party, birthday, school class reward, travel/camping etc. Not only can exercise thinking ability, but also promote communication and interaction between family or friends, which can helps to grow feelings.