xTool D1 / D1 Pro LENS UPGRADE KIT by Hemsley (14mm) – Hemsley Lens USA
Our XTOOL Lens are made from finest Mineral Glass from England. It is hardened, then we send the Glass Lens off to have an Anti Scratch, Anti Oil, Anti Smoke coating added. The Light Pass Through (LPTr) is 99.99%. Only
Source: viewngr.com