The URSA 5x Large Soft Circles are wind protection for boom microphones, which you can use to rig microphones in the car where foam gags can dip into shots. These low-profile soft circles are meticulously crafted from the finest quality stretchy fabric, so they perfectly wrap over the capsule of your mic and keep it in place using an included rubber band provided. Measuring 10.5 cm in diameter, they come in a visually appealing black colour, and blend in with clothing of a similar hue. You are recommended to create a small air gap between the mic and the URSA Soft Circle for best results. This pack comes complete with five large Soft Circles and ten small rubber bands.