These Prime-Line screen frame corners are made from plastic. They are used with appropriate screen frame to form a finished window screen. These corners allow frame to be square cut for easy construction by homeowner. Use with 0.020 or 0.025 frames. Brand Name: Prime-Line Color: White Material: Plastic Width: 3/8 in. Length: 3/4 in. Product Type: Screen Frame Corner Number in Package: 1 pk Hardware Included: No Packaging Type: Boxed Eliminates the need for miter cutting