Clamp on Desk Shelf with Pegboard, Above Desk 3-Tier Extender Shelf, Desktop Bookshelf with Hooks, Desktop Organizer for Office Desk Accessories, Tabletop Storage Rack, 38.3″ W x 33″ H, Black. 3-Tier Clamp-on Desk Shelf: Featuring a unique clamp design, this desktop organizer attaches easily to different desk surfaces, creating flexible storage space.