Base-10 Picture Cards
Set of 90 drawings (1" square) of the base 10 blocks grouped in 5s. The child can perform arithmetic operations to the thousands with trading.
MADE IN USA
WARNING: CHOKING HAZARD! Small parts. Not for children under 3 years.
I found these VERY useful in teaching my daughter place value and addition. However, the cards disintegrate if exposed to liquid and can become frayed at the edges after lots of handling.