The Shotgun Mic Foam and Windjammer Combo from Rycote is a slip-on wind solution for shotgun microphones. The foam features a 1.9" inner depth and a standard hole diameter opening. It features an open-cell acoustic foam windscreen that offers up to 10 dB wind-noise attenuation and a synthetic-fur windjammer that offers up to 12 dB of wind-noise attenuation.