water ball,crystal clay,Water Gel Beads 1.non-toxic,ororless 2.color never ... Reports Features and Function:water ball,crystal clay,Water Gel Beads"MARBLE PEARL"is a kind of round shape, ... Mud, it isCrystal Mud rich in nitrogen, phosphorus, potassium and others.2) can be used as long as 2 years3 ... expansion it lookscolorful and brilliant 4) It is widely used to decorate your indoor plants, to keep your ...