Unique tear drop shape with designated grip makes this eraser remarkably comfortable & easy to use. Precision point lets you erase only what you want to erase. Replaceable eight-layer felt pad lets you peel away used pads for a fresh erasing surface. Included magnetic docking station allows convenient storage directly on your board. Eight Peel-Off Layers. Board Eraser Application: All Dry Erase; Eraser Pad Material: Felt; Eraser Width: 7.6"; Eraser Depth: 3.4".