The Stanley FatMax® 30 metre chalk line is enclosed in a durable die-cast aluminium housing with a patented chalk view window to see exactly how much chalk is left. It features a 5:1 gear ratio for quick rewind and can be used vertically as a plumb bob. The reel contains 100ft of 50lb Polyester/Nylon string. The handle locks into the case to hold the string in place and it holds over 1.5oz. of chalk. It also includes an integrated belt clip for convenience and on-board hook storage for convenience. The specially designed hook grabs on side, top or bottom for versatility. Features a steel crank handle and a twisted polyester and cotton line for more abrasion resistance and longer life.