The Swig 20 Oz Tumbler Marble Slab features a cylindrical shape and is cup holder friendly. The triple insulation technology keeps drinks cold up to 24 hours and hot up to 12 hours. It is slip-free, scratch-free, condensation-free, dishwasher safe, and includes a noise-free silicone base. The non-breakable tumbler fits most standard cup holders and includes a BPA-free lid with a removable slider. It is constructed of 5mm 304-18/8 stainless steel and measures 7.75" H x 3.5" W (lid included); base 2.75" in diameter.