The K&M Popkiller - a world-wide classic. For stands with diameter of up to 30 mm. Double nylon screen for superior performance. Unobtrusive black round filter frame. Non-marring locking screw prevents scratching of mic stand. Attaches to mic stand, Diameter of the Screen: 130 mm, useable with mic stands up to 30 mm Diameter, gooseneck Length: 330 mm, professional pop filter with nylon screen, quality product.