Boytone Bundle Adjustable Microphone Arm Suspension Boom Scissor Arm Stand Plus Upgraded Microphone Pop Filter Mask Shield Double Layered with 3/8 to 5/8 Screw Adapter• Double screen Pop Filters: The first screen blocks air blasts as any pop filter normally would; The gap in between then disperses any remaining air pressure so by the time it passes the second screen the blast is easily contained.• The 5/8 -27 male to 3/8 -16 female screw adapter which included in the package fits for blue snowball. The Diameter of Microphone• The adjustable microphone arm can be fold up and easy for you to carry around. This feature enables to adjust the suitable angle and height to show your perfect voice. Before adjusting the angle of the microphone arm stand make sure to loosen the knob first. Avoid rotating it by force as it can damage the screw threads.• Universal: Adjustable screw rotating clamp with scratch-proof gripper can secure to MOST tubular mounting booms or mic stands (Maximum diameter: 1.6inches) Adjustable: The metal gooseneck holder fully supports the filter s weight and keep it in place. You can adjust the angle and distance between the screen and the microphone.• Heavy Duty Steel Structure: Super-strong spring with extra positioning screw folding type convenient to carry. The adjustable arms allow you to carry it with you easily and adjust the suitable angle and height to show your perfect voice.