Atelier Interactive Acrylic Keep-Wet Palette

Keep-Wet Palettes are covered palettes, made from hard-wearing plastic, designed to keep acrylic paints moist and usable for days or even weeks.

The palette uses specially-designed permeable palette paper to keep the paint fresh. The keep-wet paper is moistened and placed under the palette paper to increase the longevity of acrylics. 

Extending your paint's drying time allows you to paint for longer periods whilst also minimising the amount of paints wasted.

See also:
Atelier Interactive Acrylic Keep- Wet Palette Refill Pack