(CGS 3.0 - 8) Ceramic Sleeves are recommended for CT scans and cone beam X-Ray machines in order to avoid the X-Ray scatter that often occurs when using metal. Like its stainless counterparts, ceramic parts are autoclavable and reusable. Due to the nature of the material, there is a slight variation in the od of ceramic sleeves. Use extra care when handling the ceramic sleeves; they may break if dropped on a hard surface.