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 comes with clear glass and as specified in the Product 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. 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 flexible tabs or swivel clips 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 Fitting Instructions Slip 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).