Stanley STHT0-47147 Chalk Line, Multicolor - Amazon.com
Stanley 100 Ft. Chalk Line Reel - Anderson Lumber
Komelon N6300 300-Feet Open Reel Metal Frame Long Steel Tape Measure & Keson G110 Little Giant Chalk Line Reel, 12-Ounce Chalk Capacity, 110-Foot - Amazon.com
How to Use a chalk line marker and tape measure « Tools & Equipment :: WonderHowTo