VEVOR Dry Line Marker 4-Wheel 50 or 100 mm Lines Heavy Duty Steel Chalker 22.7kgProduct Features 7 Inch Heavy Duty Metal Wheels This dry line marker is equipped with durable metal wheels, providing excellent wear resistance and load bearing capacity. It maintains stability on rough or uneven surfaces, ensuring a smooth line marking process. The wheels are designed to minimize vibrations during movement, improving operational accuracy and reducing deformation or damage under heavy use 50 lbs Capacity This field chalker has a 50