Cheap And Discounts ZBAITU 80W Laser Module With Air Assist 450nm Blue Laser Head TTL For CNC Cutting Engraving Machine DIY Cutter Engraver Tools Wholesale. Buy Directly From Merchant ZBAITU Sales Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.