NO ExTRA POSTAGE FOR PURCHASING MULTIPLE ITEMS SIZING: in brackets code meaning : Example (x7) = this means there are 7x spaces for images in the muti aperture mount. I hope this helps understand, however if you are still unsure or would like further assistance please feel free to message us & someone from our team will get back to you at the first possible opportunity. ITEM DETAILS The moulding is made from high-quality MDF Width of the moulding: 20mm Height of the moulding: 15mm Each frame is made to order by our skilled picture framers in our UK based factory using the best of picture framing technology & machines. Each frame is fitted with an MDF backing board & a high clarity styrene shatterproof perspex sheet that looks just like real glass. Unlike glass, it will not smash or break, ensuring peace of mind in regards to safety. Frame sizes of 15x12 / 14x14 inches & above are to hang only without a stand. Please note there is no paper insert included MOUNT DETAILS Our mounts are cut on a state of the art computerised Valiani machine using 1.4mm Core Acid Free Mount Board The mount window inside is cut at a precise 45 degree angle & the mount outside is cut 45 degree angle but this won't be visible once placed in the Photo Frame Standard mount aperture cut 5mm smaller than image size to ensure overlap with your picture The multi-aperture mount is completely removable 20x16