Triangle puzzle cube Kids Dukaan speed cube stickerless is the classic colour-matching puzzle that's a great mental challenge at home or on the move. Turn and twist the sides of the cube so that each side of pyramid only has one colour. Suitable for beginner and professional player. Great corner cutting, tension adjustable. It doesn't corner twist as often nor does it lock up. Difficult to pop, good control of the cube, comes pre-lubricated and tension definitely a Good choice for you to improve personal record in competition. This cube can be used for international competition. Combines high performance designs with good value. The stickerless pyramid never requires stickers, crafted with original and non-toxic, reliable, and lightweight and comfortable in the hand, harmless to human and environment.