From the manufacturer:
No more wasted paint. . . Masterson's patented process keeps acrylics and other water-based paints moist on the open palette for hours. Once the lid is closed, the paints will stay in workable condition for days, even weeks. A wet sponge and special permeable palette paper provide the paint with a constant source of moisture. Paints will not dry out. The air-tight container can be used to store oil paints also. (Oil palette paper not included)
Each palette contains:
- 5 sheets of "Sta-Wet" acrylic palette paper
- cellulose sponge
- palette tray and lid
- instructions for preparation and use
Premiere Palette Workable Area: 16" x 12"
Handy Palette Workable Area: 7" x 8.5"