COLORS BY CLARUS MARKER BOARD GLASS COLOR SAMPLES SWATCHES VIBRANT COLORS. This a set of 22 VIBRANT glasd color swatches from Clarus. This company generally makes whiteboards from glass. These are glass color swatches you would normally get to select a color. One is magnetic with sample magnet. All measure 3inx3in. These would be great for arts and crafts or patching tile/backsplash work.