SIC 12oz Dimpled Golf Ball laser engraved stainless steel tumbler. This tumbler has been awarded the 2019 PGA Buyer's Choice Award. Perfect golf give away. This tumbler keeps drinks ice Cold for 24 hours and Hot for 8 hours. Our Serious Technology includes: TRIPLE Wall Insulation, Vacuum Sealed, Copper Lining, 18/8 Stainless Steel, Sweat Free, Splash Proof unbreakable, sliding and sealed lid. Our tumblers come with a LIFETIME warranty. You won't find a better tumbler on the market. Comes bulk packed in two inner boxes of 12.