Features:1.Sound insulation technology can effectively reduce noise. Put on instant silence to help you sleep deeply.2. The inside of the earplugs is designed with high density micro-bubble holes.It can also keep the ear canal breathable during wearing, which can effectively improve the noise reduction effect.3. The temperature-sensitive memory foam earplugs will adapt to the contour of the ear canal according to the ear canal temperature.4. Skin-friendly polyurethane, soft enough to forget to wear.5. Experts suggest that wearing earplugs for a long time is easy to breed bacteria and damage the ear canal. It is recommended that those with oily ears should replace a new pair of earplugs every week. Half-month replacement for dry ears - new earplugs.Specification:Product Name: Soundproof earplugsProduct Packaging: bottledProduct Material: PU polyurethaneQuantity of roducts: 24/60PCSColor: Pink,green,mixedPackage includes:24pcs or 60pcs Soundproof EarplugsNote:1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures.2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.