IRWIN Tools STRAIT-LINE Speed-Line PRO Refillable High-Speed Chalk Line Reel with 4-ounce Chalk, 100-foot, Blue Chalk (2031319DS) 3x faster than traditional chalk line reels 3.5:1 gear ratio Metal handle Nylon and polyester twisted line Lightweight ABS plastic housing 3X Faster than traditional chalk reels 3.5:1 Gear ratio Metal handle Nylon and Polyester braided line Light-weight ABS plastic housing