This is the complete Standard size Plein Air System. It includes the Standard/Com[pact size Painting Panel Holder that holds up to a 16" panel (1/8" or 1/4" thick), the Painting Palete with a 12"x16" main mixing area, and the SLIK 740 tripod. (A very sturdy light weight tripod that fits into 21" luggage.) (If you want the Xtra Large Panel Holder that holds up to 20", just send note with PayPal payment or send me an email..it is 26" overall length.)