Contractor-grade chalk snap-lines with 100 Ft. (30m) of extra bold premium-grade braided line. Smooth gear-drive winding, up to 3 times faster than standard snap-lines. Compact, fits comfortably in the palm of your hand yet holds up to. (45 gm) of chalk. Durable, heavy-gauge die-cast aluminium case sealed with an elastomer gasket. Positive gear-lock line hold, automatically releases during rewind. Also features a folding crank, easy-fill spout, and a tool to facilitate line replacement. Includes trial-size bottle of red Snap Line Dye. Red case. KEY FEATURES: ・Premium braided line creates Extra Bold 0.04 in ( 1.0 mm ) lines ・Large gasket-sealed refill port ・Heavy-duty aluminium case ・Smooth-running five-gear winding Inner Box of 4 / Outer Box of 24