20-teiliges Plus-Minus-Zeichen-Würfel-Set, 16 mm, hellgrün

Zusammenfassung

• Engraved Symbols: The symbols on the surface of the dices are engraved, so the minus and plus symbols on the dices will not be worn even after long term use.
• Plastic Material: These math operation dices are made of premium plastic material, which is not easy to be damaged and can be used for a long time.
• Development of Intelligence: These math calculation dices are applicable to infant education and has a helping role in developing children's intelligence.
• Attention Attracting: The math dice set adopts dice shape design, which can well attract children's attention and let them participate in mathematical operations.
• A Perfect Toy: This plus minus dice set can be used as a perfect toy for children. While entertaining, children can also learn some mathematical knowledge.