Black-green-purple

【FOOD GRADE SILICONE MATERIAL】Our products made by food grade silicone material with environmental protection,soft and comfortable,skin-friendly,no peculiar smell ,BPA free advantages,can be used with confidence.
【THIRD GEAR ADJUSTABLE】Third-gear fine adjustment,suitable gear size,length can be cut whatever you want the right tightness ,suitable for all kind of face types,fit for adults and children.
【STRONG ELASTICITY AND DURABILITY】Soft silicone material with strong elasticity, 360° bending without deformation,added texture on the back to prevent slippage,ventilation and no sweat accumulation,for reusable ,can extended service life.