Product Dimensions:6 x 6 x 2.6 cm; 80 Grams Educational Objective(s):Literacy & Spacial Awareness Number of pieces:1 Batteries Required?:No Batteries included?:No Material Type(s):Plastic Specification: About this item Fine WorkmanshipExquisite appearance with fine workmanship make it more delicate, no sharp edges, will not hurt baby fingers. Please purchase with confidence! Child Educational ToysIt will create a dynamic rhythm that allows many people to interact and improves children's communication skills and self-confidence.Adopts music function, can attract your children's attention and practice children's their manual ability. Best Gift for Your KidsGreat gift for holidays, birthday party, Christmas, Halloween Thanksgiving, New Year. Suitable for kids aged 3 years old and above. Classic PuzzleCan you memories and repeat the ever-increasing random sequence? The simple but challenging classic puzzle will test your memory and reflexes better than ever before. Improve Kid's AbilityCan test the children's memory by pressing the keys in the order of the bright lights. Conducive to intellectual development, hand-eye coordination and memory ability. See more product details Fine WorkmanshipExquisite appearance with fine workmanship make it more delicate, no sharp edges, will not hurt baby fingers. Please purchase with confidence! Child Educational ToysIt will create a dynamic rhythm that allows many people to interact and improves children's communication skills and self-confidence.Adopts music function, can attract your children's attention and practice children's their manual ability. Best Gift for Your KidsGreat gift for holidays, birthday party, Christmas, Halloween Thanksgiving, New Year. Suitable for kids aged 3 years old and above. Classic PuzzleCan you memories and repeat the ever-increasing random sequence? The simple but challenging classic puzzle will test your memory and reflexes better than ever before. Improve Kid's AbilityCan test the children's memory by pressing the keys in the order of the bright lights. Conducive to intellectual development, hand-eye coordination and memory ability.