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