Coverts 90° and curved corners (up to 9”) work surfaces to usable work areas which allows for more efficient use of the corner area. Permits the attachment of an adjustable arm and keyboard platform where the natural corner of the worksurface does not allow it. Clamping design eliminates spacers, saving installation time. Specifically designed to fit the Banana Board and Reversible 17" Corner Combo-Platform. Will also work with other WorkRite combo platforms.