Designed for smooth effortless trimming. Provides rotary cutting action that prevents bending and tearing so you get a clean cut every time. Enclosed stainless steel blade cuts in both directions so you can speed through jobs. Transparent cutting guide gives a clear view of cutting path for quick, precise cuts. Manual paper clamp secures paper stacks. Alignment grid and ruler with metric and standard scales. Sturdy metal base with non-slip feet for an extra-stable cutting platform. Easy-grip handle. Built-in blade storage compartment Trimmer Board Type: Rotary; Sheet Capacity: 10; Cut Length: 12".