Direction For Use :- 1) connect the air stone with air tube. 2) soak in the water for 15 minutes before use. 3) Its durable and be used for a long time.When it is clogged with dirt or producing bubbles with low quantity ,please wash it for re-used.Number of Stones: 10Sales Package: 10 StonesBrand: jainsonsModel Number: 4495Material: STONEColor: MulticolorLength: 3.5 cm
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