The laser pointer combines 905nm infrared pulsed laser radiation and 415nm blue energy, The anti-fungal laser penetrates the infected nail plate and locks in pathogenic pathogens on the nail bed. This creates a synergistic effect that can kill onychomycosis without affecting or damaging surrounding tissues. Can eliminate fungus and on finger and toe nails, nail bed and epidermis, Without pain, it can also solve the foot odor caused by fungus You can see incredible results in two weeks. You only need to press a button to start For the pen, you only need to apply it to the infected nail after daily laser to get the best results. Note: The effect is better when used with nutrient solution The product needs to bring an AA battery, the product does not contain batteries Specifications: Product name: Onychomycosis repair pen Product size: 2*2*14 Product weight: about 30g color: White Product packaging: opp Need to be used with repair fluid Function: Effectively kill onychomycosis, eradicate fungus and on finger and toe nails, nail bed and epidermis, and solve foot odor caused by fungus. This product needs to bring one AA battery, this product does not contain batteries Package Included: 1*Repair pen Notes: Due to manual measurement, there may be an error of 1-2 cm, please understand. The color difference may vary depending on the monitor settings. We provide you with the best products and services. If you have any questions, please let us know and we will solve the problem as soon as possible. thank you very much.