Prime-Line® PL-14272 Plastic Square Cut Frame Corner, Gray, 3/4"x1/8", 100-PackPrime Line Plastic Square Cut Screen Frame Corners for 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 . 020 or . 025 frame. 100 Pack Color: Gray Size: 3 4" x 3 8" Material: Plastic Corner Type: Square Cut Allow frame to be square cut Use with 0. 020 or 0. 025 frames Used with appropriate screen frame to form a finished window screen.