Macally Protective Keyliner, protects your Powerbook LCD screen from scratches and keycap marks.PRODUCT FEATURES: Protects your PowerBook and iBook LCD screen from scratches and keycap marks; Made from a soft, smooth, reusable micro fiber material; Specially gauged thickness to minimize excess pressure on the Powerbook or iBook hinges when closed; Allow you to clean and polish your screen without sprays or wet wipes; Anti-static treatment repels dust.