The Baseplate Uno is a new, versatile, and fully adjustable system designed to cover a wide range of radiotherapy treatment situations. Available in three sizes, the UNO utilizes modular components that can be used individually or in combination for various treatment modalities such as SRS, SBRT, chest and trunk positioning, and other applications. The baseplate combines with Klarity positioning accessories such as S-masks, cushions, locking systems, and other components to provide an integrated solution for precise patient stabilization.