Description: Noise Isolation: These earplugs are made from silicone material, effectively blocking out external noise. Whether your in a noisy dormitory, busy airport, or on a long haul , they allow you to instantly in a tranquil world and enjoy some alone timeImproved Sleep Quality: Designed specifically for students and travelers seeking quality sleep, these earplugs significantly reduce environmental noise. They help you enter deep sleep fast, improve your sleep quality and leave you feeling refreshed the next dayComfortable Wear: The silicone material is soft and flexible, perfectly fitting the contours of your ear canal to ensure comfort even with prolonged wear. They are the ideal companion for students studying or traveling or when restingMaterial & Size: Made from silicone material with product dimensions of 1.5cmx1.5cmx1cm/0.59inchx0.59inchx0.39inchPackage Includes: Each package contains 1 pair of silicone noise Isolating earplugs, 4 ear cap, great for creating your personal quiet space anywhere you go Size Chart: 1.5cmx1.5cmx1cm/0.59inchx0.59inchx0.39inch Package Includes: 2Ear Plug 4Ear Cap Note: Please allow slightly errors 1-2cm differences due to manual measurement.