3350 SERIES WELDING HELMET LENS: 3350 Series inside outside clear cover lens kit includes KP2898-1 and KP3044-1 lenses, compatible with for viking 3350 series welding helmet. Welding hood 3350 clear cover lens improves the safety of welding work and protects welders from welding injuries. COST-EFFECTIVE : Inside each welding hood 3350 lens set are 10 PCS KP2898-1 welding outside lenses and 10 PCS KP3044-1 welding inside lenses. (KP2898-1 measures 4.5 x 5.25 x 0.04 inch; KP3044-1 measures 3.53 x 3.73 x 0.04 inch) PREMIUM PROTECTION: Welding helmet clear lens can protect you and your filter lenses from scratches and weld spatter, as well as block radiant heat to prevent lens deformation and damage, prolonging the life of your helmet. HIGH QUALITY PVC MATERIAL: Welding hood clear lens for is made of PVC material, not easy to change color, deformation and breakage, even after a long time of use, lens for viking 3350 can still maintain clear and transparent, providing reliable eye protection during welding. INSTALLATION & MAINTENANCE: 3350 Lenses for is easy to install and replace. To make your welder helmet and more comfortable during the welding process, welding helmet cover lens should be replaced every 2-3 months or when damaged or worn out. Colour:Transparent Material:pvc Package Contents: 20 * Welding Helme Cover Lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.