Christmas-tree design: unlike traditional earplugs, this corded earplugs has 3 flanges, easy to fit and anti-slip, while the noise will not easily penetrate the barrier into the ear to bother your sleep or workC Reliable material: these earplugs are made of soft silicone, lightweight and washable, durable nylon rope could vacate your hands, convenient to carry and store Proper size: the length of rope is 23.6 inch 60 cm, you can hang the corded earplugs on your neck or put it in the pocket; Bendable silicone earplug is 1.18 inch (3 cm) in length and 0.59 inch (1.5 cm) in width, one size fits most adults and kids Extensive uses: this hearing protection ear plugs could not only be applied at home or library, but also be worn at swimming pool and public transport, multi-functional earplugs will be a good helper in your daily life Package include: you will get 100 pairs silicone earplugs which are soft to wear and could be applied for long time, sufficient quantity to meet your different needs; 1 Black velvet bag is also provided for your convenienceC