The Edgmon Traveler/Studio Box with tripod mounting plate is 18" X 12 X 1 1/2" when open and holds approx. 168 1/2 sticks of pastel and 24 pencils, brushes or tools. It is made of Alder and Birch (alder plywood, birch panels, sanded and sealed with brass corners and has a universal tripod mounting plate attached. Closed size is 12" X 9" X 3" deep. Memory foam inserts hold everything in place when closed, this also keeps the pastels clean. It has 6 compartments that are 3 1/4" wide X 7 1/2" long.  This box fits very nicely in our backpack (E21). Weight is 3.7lbs. Traveler Studio Box Item # T2-MP $ 265.00 Please call 1-479-787-5098 if you have any questions.) Leather Shoulder strap E14 $ 30.00 Nylon Shoulder strap E14b $ 20.00.  TRIPOD MPOUNTING PLATE IS ATTACHED