Our Roberta lamp base is made from ceramic and cut into a poised, fishtail shape. Thanks to a glazed finish, crackle detailing is highlighted throughout its timeless design, giving it a tactile and eye-catching look. Pair this base with lampshades that are Dia.30cm and above. Worth Knowing The height of your lamp base should be roughly equal to the width of your lampshade. Classic bases work well with tapered lampshades, while more modern bases work well with straight-sided drum lampshades. Shop our range of lampshades here.