Nuubu Foot Pads contain natural active ingredients. Herbal foot pads combine tried-and-true Asian techniques with a sleek and modern approach. Simply attach the herbal foot pads to your feet and leave them on for 6 to 8 hours. With Nubuu Foot Pads, it is that easy! Nuubu pads are light and air-tight - they will not hinder your everyday activities. ..