NOVICA Hand Blown Blue Recycled Glass Margarita Glasses, 8 oz 'Cobalt Spirals' (set of 6) Size: 6.25" H x 5" Diam. 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