Question about suction cups on toilet safety rails and small tiles?

April
by April

I’ve been looking at this product: http://www.vivehealth.com/products/toilet-safety-frame-rail?variant=32543218040932


But, I’m not sure if the suction cups would fit our tiled floor, since the tiles are only 3 x 3. I’m told the suction cups measure 3.94 x 3.94 x 2.36 inches. They seem to think it’ll work, however I would like a second opinion. Do you think this would create enough suction or is there something we could put down to make this work?

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