3:1 gear ratio rewinds chalk three times faster than traditional chalk reels. Easy fill & lock top has 1/4-turn locking top for quick chalk fill and easy access to reel internals. 100′ Hi-tensile line is stronger, allowing for fewer breaks and for use on rough, abrasive surfaces. Line is 2.5X stronger than traditional chalk reels. Robust steel handle and large ergonomic clutch for increased durability, strength and torque. Wide prong hook for secure anchoring. Lightweight ABS housing withstands jobsite wear and tear.