Cheap And Discounts CO2 Laser Head Lens Tube Outer Diameter 24mm + Air Nozzle for Lens Dia.20 FL 50.8/63.5/101.6mm for CO2 Laser Cutting Machine Wholesale. Buy Directly From Merchant YOYO TOOL Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.