Ready-Made picture frames are also known as 'Poster Frames' , 'Pre-Made Frames', 'Stock Frames' and 'Off-the-Shelf frames'. This elegant, wooden, modern, wall picture frame or poster frame is made from natural, environmentally-friendly, square-profile (20wx30h mm) MDF wood composite. These are wood picture frames made from MDF ( Medium Density Fibreboard) and considered environmentally friendly because manufactured from reconstituted wood waste which do not contain forest timbers or green wood chips. It may have clear glass or a clear plastic pane and as specified in this product's name details. The Craftwood back, or backing, is secured by several, fitted steel flexible tabs or swivel clips. These will hold the backing, artwork ( print, poster, photo, etc.) and frame firmly together. If the frames has a plastic pane, this may be coated with protective, plastic film which should be peeled off and removed prior to fitting up the artwork for optimal viewing. The flexible tabs or swivel clips can easily be bent or swivelled to remove the back and insert the artwork inside the frame. After inserting the artwork, the swivel clips or flexible tabs should be bent back or swivelled, to close and secure the back. Importantly, the supplied screws ( in a small, plastic bag at the back ) should be screwed to the frame's fitted angle brackets at the back of the frame, and as shown in the instruction sheet provided. Assembly, fitting or servicing by a picture framer is rarely, if ever, required. With care, the fully fitted frame can then be hung either as portrait (vertical) or landscape (horizontal).