3D eye mask that blocks 99.996% of light. - Brand: Greneo - Model: 3D Sleep Eye Mask - Color: Black - Light Blocking Rate: 99.996% - Material: Soft material - Features: 3D design Thank you for viewing. Greneo Eye Mask for Sleep [OK to Sleep on Side, Perfect Light Blocking Rate 99.99%] Good Sleep, Comfortable Sleep Goods, Zero-Gravity 3D Fit "Recommended by Physical Therapists X Sleep Consultants" Eye Mask, Summer Use, Silk Texture, Breathable, Washable, Freely Adjustable, Unisex, eye mask, 26g Ultra-lightweight, with Storage Bag (Black)