1.durable and soft PVC frame 2.PC clear lens and PVC dark lens 3. ... Our main products include: Safety Glasses, Safety Goggle, Welding Goggle, Safety Helmet, Welding Mask, Dust Mask, Respirator, Earmuff & Earplug etc ... and PC clear lens (LENS: Ø50mm) 3.indirect vents ,protect against dust and liquid4.used in gas welding, cutting ... replace lens 7.packng date high quality welding goggle 50MM round lens