• Adjustable 3″ Greasable Concave Rollers
• Low Profile Design and 3-Piece hi-strength Cutting Blades
• Strobel-Strong Sides features Corrugated Smooth Walls with Slick Surface on both Inside and Outside
• Heavy-duty Industrial Tires and Rims with Ten Bolt Hubs
• All Pivot Points have Anti-Rotational Pins and are Greasable