Chalk-Rite II Gear Drive Extra Bold Blue And Red Lines Introducing the Chalk-Rite II Gear Drive Snap-Line, a contractor-grade tool designed for the utmost precision in marking. Whether you're working on large jobs or require extra bold blue and red lines, this snap-line combines efficiency with comfort, redefining the standards of professional marking. Features Extra Bold Premium-Grade Line: 100 ft. of high-visibility for precise markings. Smooth Gear-Drive Winding: Up to 3x faster than standard snap-lines. Compact and Comfortable: Fits easily in hand, holding up to 1.6 oz. of chalk. Durable Aluminum Case: Heavy-gauge die-cast with elastomer gasket seal. Automatic Gear-Lock Release: Ensures easy rewinding without line hold-ups. Versatile Features: Includes folding cranks, easy-fill spouts, and line replacement tools. Professional Grade: Ideal for large-scale contractor projects. Vivid Line Colors: Perfect for high-contrast markings on various surfaces.