Transform any flat surface into a professional basketball court with this line marker, which includes a specialized circular drawing kit for perfect curves like three-point lines and free-throw hoops. Adjust the double-line spacing from 1.2 to 5.9 inches and height up to 31.5 inches for comfortable standing operation, eliminating back pain from bending over. The unique positioning pin design enables precise, consistent straight lines, curves, and arcs, ensuring quick and accurate marking of any size. Constructed with robust stainless steel and high-quality rubber pressure reels for durability, strong grip, and wear resistance, keeping lines in good condition. This multi-functional manual floor tape applicator works on tile, asphalt, concrete, and epoxy flooring, ideal for basketball courts, parking lots, and warehouses.