This is a mount for a crosshair laser for a Creality 10w falcon 2 laser. It may fit other Creality lasers but I only have the 10w so I cant confirm. I will include the links below for the crosshair laser and battery holder I used.
https://www.amazon.com/dp/B0BX8LWYPB?ref=ppx_yo2ov_dt_b_product_details&th=1
https://www.amazon.com/dp/B09KTVG1Y5?ref=ppx_yo2ov_dt_b_product_details&th=1