Combo Pack - Pack comes with an OX Pro String Line as well as a 4-ounce bottle of OX Pro blue chalk. Fast - 6-to-1 gear drive ratio, 6x faster to rewind that most chalk reels on the market today. Comfort - The housing of the chalk reel consists of a rubber over mold for comfort and durability. Durable - With a reinforced handle and a 100-foot 8-strand thick line, this chalk reel will suit all your needs in whatever environment. Quality - The OX Pro blue chalk powder is formulated for good adhesion and high visibility, for both interior and exterior use.