batai extra large diatomaceous earth stone bath mat (31.5” x 19.7”) white xl | fast absorbent shower stone bath mat for bathroom - quick dry, easy clean and non-slip mat - instant drying diatomite bathmat is up for auction in Home & Kitchen. The current bid is $5.50, 92% below the $69.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.