Hoppe’s kits aren’t just convenient they’re extremely well thought out. Hoppe’s Cleaning Kits include: Hoppe’s No. 9 Solvent 2 oz. Hoppe’s Lubricating Oil 2.25 oz. round cotton patches slotted ends and adapters (where appropriate) aluminum Cleaning Rod a brush to fit your specific gauge. Brushes not included in universal sizes. Available in reusable plastic box with mounted instructions and more economical clamshell versions.