Cheap And Discounts ZBAITU 450nm 40W TTL Module Fixed Focus Laser Head for DIY CNC Laser Engraver Cutter Engraving Woodworking Tools Accessories Wholesale. Buy Directly From Merchant ZBAITU -LASER Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.