speed cube bundle (2x2x2, 3x3x3 cube) is the vivid colors -matching puzzle. Turn and twist the sides of the cube so that each of the six faces only has one color. Definitely a good choice for you to improve personal record in competitions! suitable for beginner and professional player ✅ recyclable material & frosted surface - frosted surface, increases resistance, easy to hold, will not scratch. Eco-Friendly ABS material，non-poisonous material, molecular structural stability, impact resistance, avoid used for a long time wear deformation cause performance degradation. ✅ easy turning & smooth play - superior corner cutting, tension adjustable. Difficult to pop, good control of the cube, excellent stability. The cube's internal corners are slightly rounded, which makes it far easier and quicker to turn.Built-in spring makes puzzle cube more flexibility and better hand feel. The design of 1-2mm axis distance setting to prevent dropping of module and clashing during the rotation of the magic cube puzzle. ✅Multi-faceted development - can foster your kid's sense of space and enhance a child's memory, to release the working pressure of the adults, to help prevent a decline in memory of the elderly. This classic puzzle game will never go out of style and keep your kids off TV/ iPad. ✅ Prefect gift - whenever and wherever you are, you can try to stretch your brain Capacity or spend some leisure time with your loved ones.This classic puzzle game will never go out of style. Ultimate Christmas/birthday gift for kids, friends, family members.