Our Pure Nail Phototherapy Device contain ABS. It can relieve toenail pain, promote healthy nail regeneration, effectively improve the appearance of nails, help solve fungal infections, paronychia, irregular toenail growth and other problems, so that your nails return to health. The way to use it is simple: clean the surface of the nail and keep it dry, turn the product on and off, activate the device, and leave your nail under light for about 10 minutes. Improve toenail health, treat to soften embedded toenails and callus tissue, prevent toenails from growing inwards, promote healthy toenail regeneration and straighten toenails.