Oil Painting Palette Wooden Color Square Professional Oil Acrylic Paint Drawing Palette Art Supplies With a thumb-hole which edges are slanted to prevent hurting fingers while holding it. The entire palette is oil coated, so the surface is very smooth with no sharp edges. Made of high grade material, which is sturdy and durable, can be in service for a long time. Old-fashioned, vintage style--a wooden palette, unlike the current plastic palettes in the market.