Anti-noise Sleep Super Soundproof Sleep Earplugs

Product information: Model: Professional anti-noise earplugs Optional color: black and white optional Material: Nano silica gel Layers: Three layers/two layers optional Purpose:To protect hearing Performance: Waterproof and reusable Lifespan: Long-term use Specification: Black A:M-Black [two layers a pair], White A:M-white [two layers a pair], Black B:M-Black [three layers a pair], White B:M-white [three layers a pair], Features: Water proof Can be washed repeatedly for health and hygiene Packing list: Earplugs X1 pair