"Designed for use in today's magnetic media environment. Component parts are made of nonmagnetic, high impact plastic. Hinged, sliding line guide highlights each line. The glide track accommodates the line guide on the left or right side, or it can be used on top for vertical formats. Removable plastic clip rides along the same glide track and holds up to 3/8"" of material in position. Adjustable stand locks into place when in the open reading position. Copyholder folds flat for convenient storage. U-shaped lip holds books open. Rubber feet protect work surface."