NOVICA Clear Red Rim Hand Blown Glass Eco-Friendly Tumbler Glasses, 16 oz, Ruby Groove' (set of 6) Size: 6" H x 3.5" Diam.; Capacity: 16 oz. Authentic: an original NOVICA fair trade product in association with National Geographic. Certified: comes with an official NOVICA Story Card certifying quality & authenticity. Exceptional Artisan Quality by Javier and Efren. Product info: Blown glass