【STRONG AND STURDY 】-- (1) Main bright-light sticker provide for better color recognition and superior playability; (2)Small card corner design, anti-POP ability outstanding, stable and not scattered, it is difficult to remove; (3)The speed cubes has passed the US safety certification. | 【EXCELLENT STABILITY】-- (1) Cross shaft design, freely adjustable, smooth feel; ( 2 )Anti-adhesive groove, smoother and more durable, no longer have to worry about the feeling of the cube after playing for a while; ( 3) 40% fault tolerance, more suitable for children and beginners. | 【MULTI-FACETED DEVELOPMENT】-- (1 )This is a classic puzzle cube that allows children to return to tradition, play to learn,and learn to play, stay away from electronic products; (2)Effectively improve your child's concentration, responsiveness, memory, and logical thinking skills; (3)Develop your child's patience and feel the sense of accomplishment after solving the problem and increase your self-confidence; (4)Not only for children, but also for adults to relieve stress. | 【PERFECT SPECIFICATIONS】-- (1 ) 50mm*50mm, mainstream game size, suitable for WCA major competitions; (2) Light to 67g, light hand, suitable for children, even if you practice for a long time, you will not feel tired. | 【THE PERFECT GIFT】 - This is an upgraded version of the Qidi S produced by the famous Speed Cube brand "Qi Yi". The brand is endorsed by the 2 x 2 x 2 cube world record holder mats valk advertising. Your child will definitely like! This is a classic educational toy that will never be outdated. It is suitable for children, adults, and seniors. Hurry up to have it and let your big family have a fun and exciting Speed Cube game.