The Nielsen Bainbridge Tribeca poster frame collection is stocked in 18 x 24, 22 x 28 and 24 x 36 in Matte Black and Matte White. The frames are made from MDF (a particle board / wood product) and have a simple, flat-top profile about 3/4" wide in front and about 1 1/4" tall outside. The glazing is a thin polystyrene to keep the frame light (glass is a lot heavier) and this makes it easier to ship without breaking. With a masonite backing that has turnbuttons on the perimeter, it is easy to open the frame up, in a minute, to fit it with your favorite poster. The frame sizes mentioned previously are the actual inside dimensions of the frame, not the outside footprint. So, a 24 x 36 frame will, actually, hold a poster 24 x 36. There are metal d-rings riveted to the masonite backing that allow you to hang the frame in both vertical and horizontal presentations. Included is a spool of picture wire to tie between the d-rings. It's a simple, clean, contemporary way to frame-it-yourself.