Four wooden lists, two pieces of acrylic glass, and a rubber band. The simple but clever construction sees a rubber band both hold the frame together, and serves as a way of hanging the frame on your wall. It can be landscape or portrait, and it can even be viewed from both sides, giving your artworks or photographs the focus they deserve. 

A4: 31,7 x 23 x 1,2 (H x W x D)