Motrent Wooden Abacus Mathematic Counting Beads Toys for Kids 3 year old and up

Amazon.com Price: $12.99 (as of 01/11/2019 15:45 PST- Details)

Set up with 55 pcs stacking ring puzzles of ten columns + one double-sided wooden basic
Made of high quality solid wood painted with eco-friendly water paint
Makes it so much easier to teach the kids addition and subtraction