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.