Product name: laser preserving glasses material: PC+ silica gel material: PC: about 74g of nostril size: 30mm width: 176mm height: 65mm leg length: 115mm.(note: the dimensions of the product is measured manually and there could be a 2-5mm error.) package 1pcs 190-500nm OD5+ CE Laser Protective Glasses Removable Leg Laser Marking Goggles Without Box