Features 1、Easy to Replace and Install: This engraver module lens is suitable for TWOTREES TTS‑55 PRO engraving machine, and adopts a user friendly design for convenient replacement and installation. 2、High Transmittance Rate: The engraving machine lens has high transmittance rate, which can minimize energy loss and ensure high power during the running of the engraving machine. 3、Oil and Smoke Proof: The surface of the engraver lens is reinforced to prevent oil or smoke from damaging the lens. You can regularly wipe the lenses to restore their high transmittance. 4、Replacement Parts: These transparent lenses not only enhance the engraving effect, but also greatly extend the service life of the engraving machine, making them ideal replacement parts. 5、Convenient Use: Equipped with 2 pieces spare lenses for replacement, features a compact size and lightweight design, making it convenient to install and use, meeting more engraving needs. Specification Item Type: Engraving Machine Lens Material: Glass Application: For TWOTREES TTS-55 PRO Engraving Machine Package List 2 x Engraving Machine Lens