Picture frames are an essential item to preserve and highlight your artwork. But now you can get frames that can help you save the environment also. Recently, special materials are being used to make eco-friendly photo frames in the market. Art galleries are widely using these frames to preserve their valuable pieces of art. Among the different materials used for encasing pictures, frame moulding is a popular one. Frames made with this material are bound to catch the attention of onlookers.While purchasing frame moulding one needs to decide whether he or she wants a wooden or metallic picture frame moulding. Generally, people prefer to use the metallic one since picture moulding of this type doesn't distract the attention of a viewer. Metal mouldings are very often found in art galleries. The wooden picture moulding has huge variety depending on the type of wood used and colors on it. Since you get variety of colors you can put extra fine touches to your picture by providing attractive borders using it.Once you have selected a suitable cable tie mould, you will need a glazing that will protect your painting from dust and sunlight. You will get two different types of materials for glazing namely, glass and acrylic.Selecting a firm mount board is also required for picture casing as it will form the base on which the entire casing will stand. Since mount board will stay in contact with the painting, special attention should be paid on selecting it. You will get plenty of cheap mount boards which can satin a painting with its acid. Hence, always go for acid-free mount boards.You can buy all the above materials separately or can purchase metal frame kits. Metal frame kits have been introduced for making custom photo frames. This kit contains all the necessary materials for making unique casing for your photographs. This kit comes is various sizes and hence you can get a perfect fit for your painting. Broadly, picture frame kit can be divided in four parts that includes mat board, mount board, frame and glazing.