NWT Stanley Ice Flow Flip Straw Tumbler 30oz, Lavender NWT Stanley Ice Flow Flip Straw Tumbler 30oz, Lavender PRODUCT DETAILS Stanley’s® colorful, stainless steel tumbler is made to keep you hydrated in fully functional style. With a built-in flip straw for easy sipping, double-wall vacuum insulation that keeps drinks leak-proof and cold for 12 hours and a folding handle. Dishwasher safe. 4"W x 3-1/2"L x 9-3/4"H