This Sienna Plein Air large pochade box is designed with ease of use, durability, and versatility in mind. Both canvas panels and stretched canvas can be held in the adjustable canvas holders. The lid will even go completely flat for watercolor painting. The pochade box includes a removable tempered glass palette ideal for oils and acrylics. Two sets of palette blocks are also included which allow for other palette materials to be used in the box. The box also includes a handy brush tray that stores on the back of the lid with magnets.