Amazon.com: Kitchencraft Rubber Draining Board Mat ...
The draining board is granite with shallow channels. These suffer from calcium deposits as water continually evaporates in the channels, leaving mineral deposits behind which are hard to shift even with Mr Muscle in a bottle - hey presto, the rubber drainer. It"s in the name - Rubber Draining Board Mat - 4 words says it all. 5 words not required.
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