This laser pen have three color laser beam: red, green and blue-violet. It is not only compact and portable,but also widely used and safe.
Product link: https://www.lucklaser.com/index.php?main_page=product_info&products_id=128
This laser pen have three color laser beam: red, green and blue-violet. It is not only compact and portable,but also widely used and safe.
Product link: https://www.lucklaser.com/index.php?main_page=product_info&products_id=128
