4 Spider 5 Blade, Ball Bearing Reel. Tempered Alloy Steel Reel and Bed Knife Blade. Heat Treated Blades Stay Sharp Longer, Making A Quality Cut.2" Welded Shrub Bar Assembly. Unbreakable Steel Side Plate. 1" Wheels With Ball Bearings And Radial Rubber Tires Rolls Easily With Increased Traction. Easy Height Adjustment. Remove Wing Nut And Move The Carriage Bolt Up or Down For Adjustments. From 1/2" to 2-3/4". Loop-Style Handle. Cushion Grips For Comfortable And Easy Operation. Powder Coat Finish Lasts Long And Prevents Rust. Tool-Less Assembly! Wing nut system eliminates the need for tools.