Wooden Montessori Teaching Aids Math 1 - 100 Consecutive Numbers Counting Board Plate Toy, 1 - 100 Consecutive Numbers Counting Board Leather Tools The TDS meter tester can

The TDS meter tester can be used in: water purifiers and filters

Buckle method: pin buckle

Note: This is packing box

Tank level/depth (0

'visible')

Wooden Montessori Teaching Aids Math 1 - 100 Consecutive Numbers Counting Board Plate Toy, 1 - 100 Consecutive Numbers Counting Board Leather Tools The TDS meter tester can1. Educational toy to teach your children to count from 1 to 100. 2. Help your children to reinforce the sequence of numbers 1 though 100 3. The toys can be used as teaching tools in montessori school, home schooling, or early childhood development. 4. Can increase interaction between parents and their children, make families become intimate and happy. 5. Wonderful gift for your children. 6. Note: due to including product small accessories, children