The Jack Richeson Grey Matters Paper Palette 12" x 16" allows artist to see how different colors will look on a neutral surface before they are painted. It is a disposable palette and composed of biodegradable materials. The tone of the paper is a neutral grey and it is acid free. Alkyds, acrylics and oils can be used on this palette. It comes with a reference guide for color mixing. It is a useful solution for any artist who needs to see how colors will appear before they are used in an artwork. 50 sheets are included, and they are all 12-inches x 16-inches.