Store in a dry place, out of children's reach, at a distance of at least 1 m from heating devices, at a temperature not lower than +0°C and not higher than +40°C, and humidity 80%.
Install the nail drill bit according to the device's instructions; use it to process the cuticle and lateral nail folds, file under the nails, and polish the nail plate; then remove the nail drill bit from the device.
