Used to keep acrylic paints moist, these sponges are used with Sta-Wet airtight palettes. These yellow cellulose sponges last longer and absorb more water than the previous blue foam versions thereby reducing the amount of water required to keep the paint moist. Available as one individual sponge or three sponges per package.
 
View Replacement Palette Paper
View the Acrylic Sta-Wet Palette
View the Oil Masteron's Palette