What You Receive: you will receive 21 pairs silicone ear plugs in 3 different colors, white, blue and orange, the sufficient quantity will meet your various needs and you can also replace your old one or as a backup; Warm reminder: the earplugs are on ear and should not be inserted too deeply into the ear when utilized; And the ears are prone to inflammation, so it is not recommended to use them; If you experience any discomfort, please stop using it immediately Ear-friendly silicone material: made of soft silicone material, the moldable earplugs are lightweight and comfortable to wear even for a whole day, which are also reusable that you just need to clean them regularly and leave them dry naturally for future use Comfortable fit: the noise cancelling ear plugs are designed to fit ear canal without making any pressure, suitable for both adults and kids, these ear plugs cover the ear canal tight enough that will not fall out even when side sleeping Dual functions: the waterproof ear plugs have good noise reduction performance, muffing noise from construction site, concert, or traffic so that you can have a better environment for sleeping or studying; With good water resistance, the earplugs can also protect your ears while swimming (but note that silicone earplugs aren't recommended for outdoor swimming on a hot day) Travel packaging: the package comes with 3 big boxes and 3 travel size storage box to keep these reusable sleeping ear plugs clean when not in use, friendly to travelling and daily commuting, also prevent loss