User-friendly and economical design: Combines high-performance design with good value. This 6x6 magic speed cube is made of original and environmentally friendly ABS material, reliable and comfortable in hand, harmless to humans and the environment. Durable design: This 6x6 speed cube puzzle is a real speed cube, very smooth and fast. Improved anti-pop technology and structure for extremely fast and excellent cornering. Each cube comes pre-lubed and fine-tuned by the manufacturer and is ready to play right out of the gift box. The built-in spring adjustment system can be used to adjust the overall elasticity of the 6x6 cube with a screwdriver to meet different needs. Excellent performance for brain teasers - improve your concentration, hand-eye coordination, spatial thinking, general cognitive skills, increase IQ level and keep your mind sharp as you age. Best gift set and quality guarantee. Perfect gift for all festivals, birthdays, Christmas, New Year, Valentine's Day, Children's Day, Easter, Halloween, Thanksgiving.