Children Toy Baby Toys Puzzle Computing Frame for Kids Color Bead Frame Infant Children Ladder 10 Stages Arithmetic Calculation Rack Boys Girls Educational Toys Product Description:Educational Objective: Let your baby know different colors， simple figures and operation symbols; practice addition and subtraction.Expert guidance advice: pay attention to exercise the child's mathematical conceptualization sensitive period; can be combined together with other toys or physical exercise math.product description1. Calculate the frame color colorful， clever structural design， impact on children visual organ:2. Let children learn to count to beads as a unit simple addition and subtraction;3. In actual operation， exercise flexible application of the kids hands and brain， enrich the children early education knowledge， experience the fun of the game， learning progress from the game.Product name:Kid's Ten-speed computing rackMaterial:Security WoodenAges: 0 �� 6 years oldSize: 29 X 7 X 12cmPackage Included:1 X Kid's Ten-speed computing rackNotice:1，Thanks your purchase and this item will be shipped from oversea，please wait 18-38 days for it coming to you2，There might be slightly difference in color， because of the computer monitor settings.8，With the difference in the measurement method