Check the listing for details. Welding Helmet Clear Cover Lens CR-39 Monomer 2" x 4.25" Box of 100 2x4. Condition: New. Listed at 53.99 USD. Box of 100 Clear Cover Lens Welding Helmet/Hood CR-39 Monomer 2" x 4.25" • Resistant to abrasion, pitting, spatter, chemicals and solvents• Optically correct and balanced• Superior to all other products in protecting welding lens • Color Clear• Length [Nom] 4 1/4 in• Lens Coating/Shade Clear• Material CR-39 Plastic• Resistance Scratch; Static• Style Cover Lens• Width [Nom] 2 in• Window Size 4 1/4 in x 2 in• Wt. 0.02 lbMay be substituted with other brand of like kind or better quality.Orders usually ship within 24 hours, Monday thru Friday, all orders ship via USPS. If you are not satisfied with you purchase you can request a return authorization number and ship the product back to us in its original packaging and in new condition, including packaging. Returns are subject to a 15% restocking fee. The return authorization number will need to accompany all returns. Return authorization number request must be requested within 3 days of receiving the product. All items shipped to Texas require 6.25% sales tax.