Moldex Corded Semi-Reusable Twisters Earplugs have a multi-curved stem that rotates providing a custom fit Soft foam pods allow for a comfortable snug seal These plugs are semi-reusable they can be used for several days before disposal Fitted with a large handle for easy insertion and removal The cord can be attached at any desired length for universal adjustment Has a signal to noise ratio SNR of 34 dB