A collection of photo frames with aluminium moulding: lightweight, elegant, modern and durable. Frames that blend in seamlessly into any home or office decor.   4 x 6" and 5 x 7" sizes: double mat and 1.8 mm plexi pane 16 x 20", 18 x 24" and 24 x 36" sizes: 1.5 mm plexi paneA quality DeSerres product that offers excellent value for money. Eco-responsible manufacturing with very high standard of energy savings during the manufacturing process. 100% recyclable packaging. DeSerres has developed its own social responsibility program: give back. recycle. recreate.Additional information:What is a mat?A mat is a piece of cardboard (usually with an opening in the centre) that leaves a space between the photo and the frame. It is only suitable for paper artwork, not canvases. When a mat is used, there is usually a glass panel to protect the photo and the mat. Finally, when you see the words "acid-free or conservation", it means that the mat is archival quality and will not fade, yellow or alter the work over time.