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Spare rocks made for the Ross Moisture Control System. These rocks have been proven to be long-lasting with maximum efficiency. Drying the rocks is as simple as using a microwave or convectional oven. Each system comes with two canisters to make maintenance easier and to extend play ability on competition days.
While they are made specifically for the Ross system, these rocks can be used in other moisture control systems also.
Absorbent rocks by Ross.
225g (enough for one Ross canister).