Moldex Corded reusable Twisters‚ Trio Earplugs have a multi-curved stem that rotates, providing a custom fit. They have a soft, washable TPE pod, meaning that they are reusable, they can be used for several weeks before disposal. Fitted with a large handle for easy insertion and removal. They are supplied in a handy storage container to keep the plugs hygienic between use. Has a signal to noise ratio (SNR) of 33 dB.