Costco Sale: Rove Stainless Steel Insulated Tumbler 2-Pk by Rhonda June 20, 2023 *UPDATE* 4/6/17.The double wall vacuum insulation keeps drinks cold longer, with no sweat and no mess. Costco has the Rove Stainless Steel Insulated Tumbler 2-Pack on sale for $12.99 (after manufacturer’s … 0 FacebookTwitterPinterestEmail