Save paper by using a time tested and reusable writing surface. Green chalk boards are the perfect size for school, office and home message centers. Works well for handwriting practice, working equations, brainstorming, and more.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.