Promotional Tumblers & Travel Mugs, Bluff 12 oz Vacuum Tumbler & Cooler - 15hr Cold & Double-wall, Double-wall construction vacuum insulated. Clear screw-on lid with flap seal closure. It conveniently keeps drinks hot for 5 hours and cold for 15 hours. Works as a tumbler or drink insulator. Fine-grit coating with a natural feel. Hand wash only. Follow any included care guidelines. ... #SM-6931 $9.75/each.