Such a simple and brilliant touch - the dimples of a golf ball, imprinted onto triple-insulated drinkware to roll with you in your cart. Each dishwasher safe cooler is made of stainless steel with BPA-free, spill resistant shatterproof lids and a non-slip silicone base. Travel mug is 18 oz.; keeps drinks cold for 9 hours or hot for 3. Stemless cup is 14 oz.; keeps cold for 24 hours, hot for 12. Tall/skinny cooler holds most skinny canned wine and malt beverage cans. 12 oz. holds most soda/beer cans.