Description: Portable: Mini electronic game console, also a key chain, can be hung on the bag to carry and play at any time. Memory Training: Memory game machine toy, according to the light sequence, cultivates memory and hands on ability through memory buttons. Competitive Game: Electronic memory game can help you play game with friends and try to reach new high scores. You can also compete with friends to see who has the highest score. Durable Material: Video Games machine is made of high quality materials, with round design, rounded and smooth corners, comfortable hand feel, and durable for playing. Creative Gift: Memory training game toy is a fun birthday or holiday gift for kids, boys, girls. Size Chart: Diameter 5.5cm/2.17inch Package Includes: 1 Electronic Memory Game Note: Please allow slightly errors due to manual measurement and different monitors.