... " to 6" diameter in standard lengths of 300mm, up to 5 ft. Polyacetal Sheets & Flat Strips: 6mm to 80mm in standard widths ... up to 300mm, 600mm, 1000mm in lengths of 1000mm, 4 ft., 2000mm. Polyacetal Square Rods: 3/4 " to 3" square (across ... flat) in 300mm, 1000mm & 4 ft. lengths. Color: White & Black Polyacetal sheet