Features: these window lens is fit for atomstack m50 laser module, xt20y40 module and suitable for laser module of a10pro/s10pro/x7pro laser engraver.
replacement method: remove the current glass kit by unscrewing counterclockwise, screw the new glass kit up clockwise.
fine quality, durable to use.
what you get: 2pcs window lens.
any problem, please our store.
honor to serve you.
specification: mode: 10w laser module window lens quantity: 2pcs for: 10w laser module, atomstack a10pro/s10pro/x7pro, m50 laser module,?xt20y40 laser module packing list: 2 x window lens.