The InVision Universal Pop Filter Foam (5-Pack) by Rycote is a pack of five custom mesh replacement foams for the Rycote InVision universal pop filter. The foam is capable of eliminating vocal pops up to 20dB with no audible high-frequency loss. Over time, these foams become soiled and begin to omit unpleasant odors making a replacement a necessity to help maintain a clean and hygienic studio. They are also handy in case of loss or damage and will keep your clients feeling comfortable - enabling them to deliver their very best performances.