Support for plein air and urban sketch with watercolor or drawing. Two pieces of MDF 35x25cm (larger) and 25x20 (smaller), tied up by simple hinges wit a piece of epoxy to hold the angle once it's opened. Not weather proof.
Mounted on a Manfrotto tripod 3011, with 494 RC2 ball head.
Detail of the hinges and epoxy with part of the hinges screwed on a piece of wood.
I have not used claw nut on this one, just regular nuts locked by a small piece of metal with hole.