Optima Art Tray in Black 18694B Dimensions: 7"W X 31"D x 2.5"H 16 Separate Storage Compartments for Paints, Brushes and Water Tray Mounts Easily to most Studio Designs Wood Top Drafting Tables Mounts to Left or Right Side Dimensions: 7"W X 31"D x 2.5"H 16 Separate Storage Compartments for Paints, Brushes and Water Tray Mounts Easily to most Studio Designs Wood Top Drafting Tables Mounts to Left or Right Side