VEVOR Rail Mill Guide System, 12 ft 4 Crossbar Chainsaw Mill Kits, Aluminum Saw Milling Rails System Works with Chainsaw, 2 Wedges, Adjustable Rail Milling Guide Kit for Builders Woodworkers Adjustable Rail Beam Premium Aluminum Build Smooth Cutting Wide Compatibility Reinforced Stability Extra-Strong Structure Main Material : Aluminum alloy + Carbon steel,Color: Silver,Item Model Number: JHV-12,Product Weight: 16.98 lb / 7.7 kg,Cutting Range: 12 ft / 3.66 m,Product Dimensions: 143.98×9.49×4.27 inch / 3657×241×108.4 mm