Designed to work for the most popular handgun calibers. Kit includes the following: Heavy-duty 4-piece brass cleaning rod, 3 brass cleaning jags, a brass slotted tip, and adapter, 3 bronze bore brushes, 3 cotton bore swabs, 20 cotton cleaning patches, a muzzle guard, removable organizational tray, toolbox with clear lid and solid latches that will stay secure, even after many uses.