Product Information Name: BNRU Multi-Layer Noise Earplug Material: Nano silica gel material+ Memory sponge Size: 17mm* 14mm Colors: Black White Blue Pink Include: Nano silica gel + slow rebound sponge + shark fin tail filter Package: 1 pair of earplugs 2 layers of silicone 8 sponge replacements Colors box and stroage box Feature 1.Human cochlea structure design, fits the auricle to prevent shedding 2.Nano silica gel + slow rebound earplugs, 2 different noise reduction methods 3. Filter+ soft elastomer + sponge earplugs, triple noise reduction. Sound insulation effect increased by 60% 4.It can be washed repeatedly and used repeatedly, which is healthy and hygienic. Environmentally friendly and durable 5. Comfortable to wear, equiped with a rubg desugb to fit the shape of the auricle, it will not fall off when you turn over and sleep on your side. 6.Full oval shape, professional noise reduction, quiet and comfortable. Translucent design high face value is more brilliant. 7.The earplugs are composed of three parts: technology noise reduction outer ring filter, nano silica gel. 8.360 Degree ring half in-ear earbunds, average effective noise reduction 28dB.