Hoppe's 9 Gun Cleaning Patches .38 to .45 Caliber .410 to 20 Gauge Pack of 40 Synthetic. The Hoppes Bore Gun Cleaning Patch is ideal for pre-cut calibers and gauges. Specifications for Hoppe's 9 Gun Cleaning Patches: Manufacturer: Hoppe's 9 Condition: New Features of Hoppe's 9 Rifle Bore Cleaning Patches: Uniformly woven patches Ultra-absorbent Pre-cut caliber and gauges Package Contents: Hoppe's 9 Rifle Bore Cleaning Patches Hoppe's 9 No. 4 Gun .38 to .45 Cal. .410 to 20 Ga. Gun Cleaning Patches - 40 per pack