Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! [Wide Compatibility]The welding lens size is about 103X97mm, suitable for all welding helmet lenses of the same size. Compatible with Electric Viking 3350 series, including K3034-5, K4671-4, K4181-4, K5423-5, K3034-4, K5133-4, K5134-4, K3683-4, K3100-4, etc., providing and protection. [Clear Welding Lens Material]The replacement Viking 3350 lenses is made of polycarbonate material, which has excellent impact resistance and abrasion resistance, ensuring clear vision and safe protection during long-term use. [Function and Use]The welding hood clear lens can effectively filter harmful light and protect your eyes from strong light and splashes generated during welding. Whether it is daily maintenance or professional welding operations, our welding helmet lens are your indispensable partners. [Recommended Replacement]Depending on the frequency of use and working environment, it is recommended to check the status of the welding hood lens regularly. If obvious scratches, stains or damage are found, it should be replaced in time to the best protection and clarity of vision. [Package Contains]20 pieces of welding lenses to meet long-term use needs and reduce the trouble of frequent purchases. Material: PC Color: As shown Package Contents: 20 pieces of welding lenses 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.