Micro USB Cable

$6.84

In the test tube rack, there are three simple number families (one digit, ten-digit, and hundred digits) painted with white, three thousand digits (thousand digits, ten thousand digits, and one hundred thousand digits) painted with gray, and one million digits painted with black; Ten test tubes can be placed on each test tube rack, and there are 10 beads in each test tube rack.
Among the first two groups of test tube racks (simple family and thousand families), one rack has green beads, which are single digits. There are blue beads on one shelf, which are ten digits. There are millions of red beads on a shelf. Good for developing children's visual discrimination of size, volume, thickness, and height, improving eye and hand coordination, and enhancing fine motor skill
The perfect gift pointers can be used as an excellent gift for teachers, tour guides, sofas, presenters, professors, narrators, leaders, and sales staff to effectively point out key information during presentations or teaching.
The color of seven cups corresponds to each test tube rack. The color of the outer part of the cup corresponds to white, gray, or black, while the inner part of the cup corresponds to green, blue, or red corresponding to the decimal level.

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