CHALK-RITE Gear Drive, is a professional fast wind die-cast aluminum chalk snap-line. A compact and extremely durable die-cast aluminum chalk snap-line that winds up to 3 times faster than standard snap-lines. With 100 feet of premium-grade nylon braided snap line, folding rewind crank and a positive gear-lock line hold.Contractor-grade chalk snap-line with 100 ft. of premium-grade braided lineCompact, fits comfortably in the palm of your hand yet holds up to 1.6 oz. of chalkSmooth 5 gear-drive winding, up to 3 times faster than standard snap-linesDurable, heavy-gauge die-cast aluminum case with folding crankPositive gear-lock line hold, automatically releases during rewind