SpectraCal™ - Get your brand in where it fits in with this 16 oz. Double Wall Insulated Tumbler. Whether the recipients like morning coffee or wait to have an afternoon pick-me-up, this 7 1/4" x 3 1/4" diameter mug will be right there to help them recharge their engines. It features a durable stainless steel exterior, BPA free plastic interior and a slide and lock splash proof lid. The contoured base fits in most cup holders, making it easy for them to take this best-selling item on the go. Add your branding information for maximum exposure! Caspian.