KleenBore designed these precision phosphor bronze bore brush with a rounded smooth bristle tip. The straight, thick, wire bristles offer more effective cleaning power. The brush remains thick and stout and will not easily bend with force down the bore. The bronze brush is designed specially to not damage the grooved rifling.Features and Specifications:Manufacturer Number: A188 Carefully-made, thicker, straight bronze wire bristlesDesigned with rounded, smoother bristle tipsSafe and effective cleaning powerWill not easily bendWill not damage precious riflingFits:.22 Caliber Handguns