Earplugs of this shape will be easier to enter the ear canal, have a perfect sound insulation effect, and protect your hearing Features: Loop design, easy to install and remove - Single layer structure, competent to block out loud noises - There will be no pain when wearing it and will not fall off easily - Portable case for taking outside to keep earplugs clean and tidy - The single layer style with 3 sizes of replacement earcaps, suitable for most people’s ears - Washable and reusable - Perfect for sleeping, working, studying, traveling, concerts, and general hearing protection from all types of loud activity Specifications: Material: Silicone - Colour: Blue - Style: Single Layer Style - Size:Single Layer Style: 2.2 ×1.5 × 1.7 cm Please Note: Due to manual measurement, there might be a tolerance in the product size. Package Contents: Single Layer Style:1 x Pair of Ear Plugs with Replacement Earcaps2 x Pairs of Extra Replacement Earcaps1 x Storage Box