Feature:1. PHYSICAL : Bring the light as close as possible to the area to be irradiated, up to 3 times a day. The duration of treatment varies from person to person, depending on age, severity of the , etc. The duration of treatment is approximately 3 to 6 months.2. NAIL CARE: The physical pen is effective in improving nail s, providing effective foot care, toe whitening and improving nail health.3. COMPACT: Compact and small nail treatment device improves the appearance and health of the fingernails and toenails that suffer from common conditions.4. SAFE: This finger and toe treatment pen can safely and pain free resolve nail s. It has no side effects and can be used without worry.5. PORTABLE DESIGN: This pen is small and light enough to carry around, easy to use, no complicated treatment procedures, and no need to the nail after use.Specification:Item Type: Nail Treatment PenMaterial: ABSBattery: 1 x lithium ion battery (shipped without battery)Battery Type: 18650Characteristics: 1. Non invasive, pain free, no side effects, pure physical 2. Make the light as close as possible to the area to be irradiated, up to 3 times a day3. Physical time varies from person to person, depending on age, severity of and other variables4. Treatment time is about 3-6 monthsHow to Use:Installthebattery,presstheturnonbuttontouse,use7‑15minutesaday,3‑6monthsofcontinuoususe.Package List:1 x Physical Device1 x Instruction Manual1 x Battery Charger1 x Bracket1 x Bracket Head