?Tips?: If you have any questions about this product, such as the use of the product or the quality of the product, please contact our professional team, and we will assist in solving the problem as soon as possible. [Easy to Carry] : Comes with earplugs case and earplug tip special box. It can be placed in an exclusive box before and after use, which is also more convenient to carry on business trips, and it is more secure to protect and clean. [Ergonomic in-ear shape] : These earplugs are easy to insert and when you wear them correctly, they don't stick out of your ears, The light and soft silicone earplugs are ergonomically designed to make the user more stable to wear. [Reusable] : The earplugs for sleep are made of soft nano-silicone material, which is delicate and safer to touch, non-stick dust, easy to disassemble and replace, washable. [Noise Reduction] : Ear plugs are reusable and durable hearing protection, 3 kinds of earplugs can be freely matched, They have noise reduction rating of 22-31 dB SNR, Nano silica gel with slow rebound foam has more obvious noise reduction effect. [Recommended combination] (1): Slow rebound foam earplugs, it is recommended to use when sleeping, the noise reduction effect is perfect, the night is quieter. (2): Nano silica gel with slow rebound foam design earplugs, skin-friendly noise reduction effect is excellent, suitable for work, study or flying, so you no longer worry about being disturbed by the outside world. (3): Double layer silicone earplugs can be used for sports, cycling, parties, swimming and other occasions. [Innovation] Silicone, foam, silicone + foam, three kinds of interchangeable earplugs to meet the noise reduction in different scenarios, you can always find the one that suits you.Best Sellers Rank: See Top 100 in Health & Household. Size: 120 Count. Recommended Uses For Product: Noise Protection. Material: Silicone. Color: Black. Brand: ERM TOOL. : B0BKPDG6GC. Manufacturer: ERM TOOL. Date First Available: October 27, 2022. Package Dimensions: 5.55 x 3.98 x 1.34 inches; 2.89 Ounces.