16 oz. Sleek Thermal Tumbler, Island Hula Honeys This Sleek Tumbler opens through a flip top and a durable clear acrylic exterior protects your hands from hot or cold beverages. With a non-slip base, these tumblers are perfect for your car, home, office or travel use. Tumblers measure 8" H x 2-3/4" diameter at top and holds 16 oz.