The small, red Bubblebee Industries The Spacer Bubble System is a multipiece, adaptable windshield system for shotgun microphones, which allows you to quickly switch from indoor to outdoor recordings in a matter of a few seconds. It fits microphones 18 to 24mm in diameter and has an inner depth of 105mm to cover all the ports on the mic. Designed specifically for boom operators, videographers, sound mixers, and sound recordists working under changing locations, it greatly reduces noise from wind, vocal plosives, and boom 'swoosh' while remaining acoustically transparent. The system includes the Spacer Bubble, The Long-Hair Spacer Cover (fur), and a mesh storage bag.