The Rycote InVision USM-L Studio Kit consists of a universal pop filter and one USM-L shockmount. This complete pop filter and suspension system fits any large-diaphragm recording microphone with a diameter between 18-68mm. The USM offers up to 12dB better isolation against unwanted vibrations, providing up to 20dB pops and thumps attenuation, with no HF loss. This fast and easy to use kit is hard-wearing, more vibration-resistant and better at protecting your mic from vocal pops and thumps without high-frequency loss, than any traditional elasticated microphone suspensions.