Cleans gun bores in 10 seconds. Clean guns in the field, on a bench or in the shop. Initial floss, built-in brushes and main floss removes powder residue, metal fouling & hardened deposits. Cleans from the breech without assembly. No debris in gun's action. No more broken rods or stuck patches. Washable and durable. Compatible with most solvents & oils. Built-in phosphor bronze bore brushes.