Shanghaimagicbox Brass Chinese Feng Shui Wu Lou (Wu Lu/hu Lu) Gourd Amulet for Health Material: Brass Condition: New Size:3.5 Inches high (9cm), 1.38 inches width (3.5cm) It is the powerful symbol of health, longevity and prosperity. Function: Wu Lou is one of the most significant tools to cure and enhance our Feng Shui.