The Travel Earplugs Kit is a simple way to keep your earplugs accessible during travel. Each silicone case holds two earplugs, keeping them clean and protected when not in use. The key ring makes it easy to attach to zipper pulls, keys, or wherever its convenient for you. 32 dB Noise Reduction Rated (NRR) earplugs are high quality and effective, while the memory foam fit is comfortable for long term wear.  3 pairs of comfortable memory foam earplugs 2 silicone cases to use as a keychain or zipper puller High performance earplugs, noise reduction rated 32 dB Weight  7 g (per set with case) Materials 32 dB Noise Reduction Rated (NRR) memory foam Silicone cases Stainless steel key ring