Product Description No more wasted paint!The Sta-Wet palette system was developed by Masterson over 25 years ago and is unmatched in its level of functionality.Mastersons Sta-Wet system 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. Your paints will not dry out. The airtight container can be used to store oil paints as well. When used to store oil paints, a palette conducive to oils is recommended. Each palette contains: Five sheets of Sta-Wet Acrylic Palette Paper One Sta-Wet Sponge Palette Tray and Lid Complete instructions for preparation and use Additional paper and sponge refill packs are available. Workable Area: 12 x 16 x 1-3/4