The Number set of puzzle has 10 numbers and objects(1 to 10)
This set is going from easy to more difficult level in order to encourage the children to keep playing and reaching to the challenging part. Each number has different color and the equivalent pieces (ex: #2 has two pieces and #10 has 10 pieces.) High quality, hard, durable, and colorful pieces come in the box which is great to keep all the pieces together (Moms will love this!)
It is great for children 2 and up to play and learn vietnamese. 
Smart Toys for Children to play and learn Vietnamese and English
Puzzles Number, shapes and colors.
The Number set of puzzle has 10 numbers and objects(1 to 10)
This set is going from easy to more difficult level in order to encourage the children to keep playing and reaching to the challenging part. Each number has different color and the equivalent pieces (ex: #2 has two pieces and #10 has 10 pieces.) High quality, hard, durable, and colorful pieces come in the box which is good to keep all the pieces together. 
It is great for children 2 year and up to play and learn Vietnamese. 
This puzzle is great for cognitive development: learning numbers, colors, shapes and also counting skills in two languages. One of the best bilingual teaching material for toddlers.