Real Avid's Bore Max Speed Clean Upgrade Set is an all-in-one upgrade system for faster and easier bore cleaning. System includes the Bore-Max Speed Brush with twice the bristle density of traditional brushes, making it twice as effective in agitating the surface in preparation for the jag and patch. Finish off with the Speed Jag and Patch combination to remove up to 4 times the carbon and copper of shorter traditional jags and square patches. Clean Bores Faster!FeaturesAvailable for a variety of calibersIncludes 75 speed cleaning patchesPrecise sizing depending on the caliberNoteOnly use Speed Jag Patches with Speed Jags and only use Speed Jags with Speed Jag Patches. Failure to do so can result in a seized jag within the bore.