Outdoor Garden Rain Drum: Easy to play and simple to learn. Produces a clean, sound. 1 Hollow drum. Colour:A:Malachite Color/B:White/C:Red/D:/E:Black/F:Dark Green/G:Blue. The healing power of sound: can relieve stress, bring balance to the body, relieve anxiety, enhance relaxation, increase good energy and remove negative energy, promote better sleep, and encourage better behavior in children.