Choose Perfect Colors with Confidence. Selecting perfect color combinations has never been easier! By popular demand, Joen Wolfrom has designed a durable, color-accurate, double-sided, multi- purpose color wheel that is perfectly sized for use in your studio, workroom, office, or sewing room It's easily transportable! One side of the wheel features 24 pure colors with 4 essential color-plan wheels for each color. The opposite side shows a range of each pure color's tints, shades, and tones. Pure-color wedges are slotted so you can audition colors (fabrics, paint swatches, etc.) alongside them to ensure a perfect match. 12" x 12".