This Stanley 047440 Chalk Line has a 30g/1oz chalk capacity and holds 100ft of string. It can be used vertically as a plumb bob with the crank folding into the case for storage. It has an ergonomic design and high impact ABS case for durability. There is a sliding door for quick, easy refill and a stainless-steel end hook which does not rust. Specification Cord Length 30m.