The Stanley 100-Foot FatMax Chalk Line Reel features a water-resistant, high-impact ABS case with rubber grips, making it both extremely durable & easy to hold. The 3:1 gear ratio gives you a rewind that's 3 times faster, while the chalk line has twice the tensile strength of traditional lines & lasts twice as long. A convenient locking button holds the string in place. This reel holds one 4-ounce bottle of Stanley Chalk, & an easy-to-access screw cap simplifies the chalk refilling. The reel also features a long-wearing felt gasket that hugs the line & distributes chalk coating evenly. A stainless-steel universal hook withstands heavy use, & the crank handle folds neatly into case for storage & transit. This chalk box is great for wood, concrete, drywall, & more. 100' (30 m) long line.