The Chalk Markers by American Metalcraft: Securit Chalk Markers, rain & smear proof, use on all non-porous surfaces, small tip, assorted colors: red, green, yellow & blue (pack of 4) ( American Metalcraft - SMA510V4 ) - These American Metalcraft...
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.