Ideal for marking wall alignments, or flooring layouts at building sites, renovations projects, or home improvement tasks The Automatic Line Marking systems creates construction lines with single handed operations, eliminating multiple worker coordination for job sites efficiency Engineered with housing and high strength cotton thread, delivers crisps marking for not error construction planning and execution Suitable for construction professional, carpentry, and enthusiasts requiring accurate measurements in demanding environment Featurings a leakproof double layer chamber and rapid rewinding thread mechanism, this tool ensures clean operations while saving time on setups and cleanup, Manufacturer: LUJIAXI