Safe to use on kids 4 years and older. Includes: 12 Disposable foam applicators (six 7 mm & six 8 mm); 1 Reusable applicator holder. Freezes common & plantar warts with a single treatment. Faster and more effective than traditional wart treatment methods. Doctor preferred method. Wartner is a fast and effective treatment for the removal of common warts and plantar warts. Wartner freezes the wart on the spot, causing the wart to fall off within 10 to 14 days, usually after one application. Wartner is suitable for the removal of common warts and the removal of plantar warts on the bottom of the foot on adults and children over the age of 4. Common warts are skin-colored, usually appear on the hands and feet, and are easily recognized by the rough cauliflower-like appearance of the surface. Plantar warts are recognized by their location only on the bottom of the foot, their tenderness, and their interruption of the footprint pattern. Made in the Netherlands.