Palette-Builder Color Tool: 4 Mini Wheels Feature Tints, Tones, Shades & Neutrals to Spark Creativity; Simple to Use, Easy to Take Along; 12 Numbered Colors, 5 Color Plans, (4) 5” Color Wheels

This is absolutely excellent. By offering a full view of the tints, tones, and shades of colors , it helps tremendously in determining your choices for any project. I’m using it solely for fabric picks. I’m sure it has equal value for other mediums as well.