Encourage independent study time with Balt's Groove Carrel. Starter and adder units allow you to create a layout that suits your space and makes it easy to add more carrels at any time. The spacious work surface features a built-in groove that holds books upright or keeps track of pens and pencils. An upper shelf provides additional privacy as well as storage space and grommet holes keep cords off the work surface. The durable laminate finish is easy to clean and stands up well to daily use. Adder units do not function alone and must be attached to a starter unit.