This is a 10pcs Red Laser Module - Focused Line. APC accompanied by high-performance driving circuit and optical coated glass lens group. Focused Line Red Laser Module uses high-quality laser diode, optical glass lens, driver circuit and housing. Red laser module is high reliability, high stability and long life. Focused Line Red Laser Module is suitable for various industrial marking, industrial laser modules, swinger type laser light source, teaching test light source, laser medical equipment, stage lighting and laser positioning device. Laser devices laser module is built to exacting standards using selected top grade materials. Red Laser Module Adjust Focus Dot. Exquisite and durable, great for DIY projects. Good materials, long wires that comes stripped. Easily integrated into your project.