These Hoppe's square cleaning patches feature a uniform weave and are pre-cut to avoid fraying. Perfect for all gun cleaning applications.Dimensions: 17 to 20 Caliber: 1-1/8" x 1-1/8" 22 to 270 Caliber: 1-1/8" x 1-1/8" 27 to 348 Caliber: 1-1/2" x 1-1/2"35 to 45 Caliber, 410 Bore to 20 Gauge: 2" x 2"16, 12, 10 Gauge: 2-3/4" x 2-3/4"Please Note: While the .17 to .20 and the .22-.26 caliber patches are both the same dimensions (1 1/8" Square) the .17-.20 patch is made out of a thinner fabric to allow for use in the smaller bore size.