U22B is a clamshell rifle kit. Contents are 2 ounces of Hoppe's No. 9 Gun Bore Cleaner, 2 1/4 ounces of Hoppe's lubricating oil, round die-cut patches, an aluminum cleaning rod with a knob and slotted ends, and a brush sized for this kit. Calibers listed for this kit are .22, .222, .223, .224, .225, .243, .25, .25-06, and .257.

• Manufacturer: Hoppe's — U22B rifle cleaning kit, SKU U22B, UPC 026285512915
• Fit: rifle kit for .22, .222, .223, .224, .225, .243, .25, .25-06, and .257
• Chemistry: 2 oz No. 9 Gun Bore Cleaner; 2 1/4 oz lubricating oil
• Tools: aluminum rod with knob and slotted ends; die-cut patches; caliber brush