Brain development: Our puzzle cultivates your kids' manipulating ability as well as enhances their intelligence Hollow: Each tile has a letter or number slot, let your kids recognize proper letters or numbers for corresponding slots.

We do not accept returns unless product is damaged. Request to share unboxing video incase of damage and write to us within 5 days of product receipt.

Products are shipped within 10 working days of order confirmation.

Gently wipe with a dry cloth.