Whiteboard Combination PandaBoard® Brand Felt Eraser and Pen-holder that magnetically clings to the steel board surface. Up to 4 pens clip into the eraser. Patented. #EPH-4
Amazon.com : Click Clean 6-Pack Replaceable Felt Pads, Magnetic Whiteboard Eraser Felt Pads, Designed for Click Clean Replaceable Dry Erase Board Eraser, Intended for Classroom, Home and Office Use : Office Products
Whiteboard Eraser, Replacement Pads – item America LLC – Shop