Our Shock Blocker X4 Shock Free Knockdown is expertly crafted to provide effortless knockdowns without straining your hands or fingers. This duel spring knockdown is set to maximum stiffness while allowing movement through the shaft. Two magnets on either side to prevent any accidental rolling from metal surfaces. Measuring 4 inches in length, it accepts industry standard 5/16-18 thread tips for added convenience.
Overall length of the knockdowns is 3 1/4" long and 1.2oz (34g) in weight
