Amtech G3750B 2 Piece 30m (100ft) Chalk line kit

Amazon

2PC CHALK LINE: Designed for precision and reliable use in DIY and trade projects ALUMINIUM BODY: Lightweight build minimises fatigue during extended use SIZE CAPACITY: 30 m range ideal for household and trade applications SMOOTH OPERATION: Engineered to deliver consistent performance DIY & TRADE USE: Reliable choice for both professionals and home projects, Weight: 0.3968320716 Pounds, Manufacturer: DK Tools

ManoMano

General description Lightweight aluminium body with 100ft of self-chalking line, ideal for marking straight chalk lines. Comes with chalk powder in a plastic bottle. Technical specifications Material: Aluminium Line length: 100 ft Chalk powder included: Yes, in plastic bottle