Durable and efficient: Crafted from high-quality cast steel, this marker is built to last, featuring anti-vibration wheels and guide marks for precise alignment. Its comfortable handle design ensures ease of use on tough surfaces like asphalt and concrete. Versatile adjustability: Adjust line width from 5-15 cm and height from 70-80 cm, making it perfect for drawing straight lines, curves, and circles with clarity and precision, no prior experience needed. Precision marking: Equipped with two wheels for smooth operation, this marker allows for accurate markings without the need to bend down, enabling standing work to reduce fatigue and boost productivity. User-friendly operation: The dual-wheel design facilitates easy and accurate marking on various surfaces, ideal for creating lines and shapes on roads, factories, parking lots, and more with minimal effort. Broad application range: Suitable for both indoor and outdoor use on hard and grassy surfaces, including roads, garages, schools, sports fields, and industrial areas, making it a versatile tool for any marking project.