KleenBore .50 Cal Pull Through Bore Cleaner - Fast and easy field or range cleaning! Designed with a series of built-in bristles, the KleenBore rope cleaner combines all the cleaning processes into one simple step, effectively cleaning your bore in a single pass. Lightweight and packable, great for those quick cleans. Initial floss area brushes the action then removes loose grit and debris in the bore prior to the main scrubbing. The main floss, with 160 times more floss than a standard cleaning patch, safely super-scrubs the bore to a mirror-like finish. Size marked on the brass weight of the pull cord. Break Free CLP Wipe Packet Washable and reusable