Desk Knife Plinth | Grey | CraighillA sculptural home for Craighill's Desk Knife. The Desk Knife Plinth consists of a pyramidal base, individually cast in pigmented concrete, with a void that secures the knife along its center of mass. Note: Desk Knife sold separately. Specifications: 3. 5" x 1. 25" x 1. 25" Concrete 4 oz Each piece is handmade and unique. Slight imperfections are inherent to the material. A collaboration between Vicente Muoz and Craighill.