Twelve-angled polystyrene frame A 3823, width 24 mm, height 39 mm. In addition to the sample sizes that are displayed, we can produce twelve-angled wooden and polystyrene frames from all the models in our collection, of your choice and size. Within these frames, it is suitable to use a paper matboard, in which the opening is cut into an ellipse or circle, depending on the shape and size of the work being framed. Do not hesitate to ask for a specific model and dimensions and we will calculate your price.