RotaWrap (TM) - Give new and potential customers a clear view of what your company has to offer with this 18 oz. Translucent Double Wall Insulated Tumbler! The acrylic tumbler features a stainless steel spill proof open/shut lid and a contoured base with non-skid bottom that fits in most cup holders. It measures 7 3/4" x 3 3/8" diameter, giving your company's name, logo or promotional message plenty of room to shine. Don't let them look right past you when you have so much to offer! Kern.