2-component foam insert. Insert dimensions / drawer size: L (563 x 393 x 35 mm). The Vigor 2-component foam inserts are easy to clean; simply rinse under running water and dry. Missing tools are immediately identifiable by the red groove, ensuring that everything is in its place and providing perfect organization. The design protects the tools as they are embedded without the risk of slipping, with each tool having its own predefined spot. The insert is oil and grease resistant. Drive: 1/2 inch (12.5 mm) square, hollow. Output: T-profile, internal hex profile. Dimensions: 563 mm x 393 mm x 35 mm. Insert dimensions / drawer size: L (563 x 393 mm).