Rycote's Mic Flags are made from durable shatterproof moulded plastic and avoid the use of perishable foam inserts to make the flags fit the microphone. Instead, an array of internally fitted hard-wearing red and black rubber 'vanes' secures the flag around the microphone, allowing Rycote’s Mic Flags to be used with any microphones ranging from 19 to 38mm in diameter.