YETI Rambler 10 oz Lowball, Vacuum Insulated, Stainless Steel with MagSlider Lid, Black The Rambler 10 Oz Lowball Is Made From Durable Stainless Steel With Double-Wall Vacuum Insulation To Protect Your Hot Or Cold Beverage At All Costs These Ramblers Come Standard With The Yeti Magslider Lid, The Only Drink Lid That Uses The Power Of Magnets To Keep Your Water, Beer, Or Favorite Drink On Lock While The Magslider Lid Adds A Barrier Of Protection For Keeping Drinks Contained And Preventing Heat Or Cold From Escaping, Please Note - The Magslider Lid Is Not Leakproof And Will Not Prevent Spills Yeti Ramblers Are Bpa-Free, Dishwasher Safe, And Have A No Sweat Design To Make Sure Your Hands Stay Dry. The Tough Duracoat Coating On The Colored Tumblers Won'T Crack, Peel Or Fade Ideal Drinking Companion at Home or Around the Campsite. The Lowball Dimensions Are: 4 1/8 Inches High, 3 ½ Inches in Diameter New - Never used Smoke free and pet free home