Dahle 552 Professional Rotary Trimmer

20 Sheet Cutting Capacity - 20" Cutting Length - 3.4" Height x 15.1" Width x 28.8" Length - Automatic Paper Clamp, Self-sharpening Blade, Dual-barrel Guide Bar, Bi-Directional Cutting, Metal Base, Ground Blade, Adjustable Alignment Guide, Screened Guide, Non-slip Rubber Feet, Sturdy - Metal, Steel, Aluminum, Plastic - Blue - 1 / Carton. Self-sharpening blade hones itself as you cut for lasting performance. Aluminum guide bar provides strength and accuracy.