The design of this cup using Greblon ceramic and double wall insulation is not only functional but also visually appealing with a beautiful matte finish. This is not just another boring travel cup. It?? s a functional design statetement that contributes to the world wide issue of waste and recycling. Features 8oz / 227ml ? 11cm(H) x 8cm(W) x 8cm(D) 12oz / 340ml ? 14.4cm(H) x 8.1cm(W) x 8.4cm(D) Greblon Ceramic engineered to be durable, and easy to clean 3 hours hot, 6 hours cold (Best served 65C-80C/140F-176F) Ergonomically designed to fit perfectly in your hand or cup holder. Premium Matte Finish (Note: Handle with care to avoid external scratches)