Product name: laser retaining 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 may be a 2-5mm error.) kit 1pcs 808nm OD6+ CE Laser Protective Glasses Removable Leg Laser Marking Goggles