24 deep wells, with additional mixing palette Dimensions: 10.5x18.5x3cm Material: plastic Silicone latex seal design, leak proof and airtight. Enables watercolor, gouache, acrylic or oil stay wet, great for travel artist. Thumb hole designed under the box. A good paint palette helps keep all of your colors separated to avoid unwanted blending and gives you a space to blend without creating a mess.