6:1 gear ratio rewinds chalk six 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. Open access back panel allows for quick line change and easy cleaning. Robust steel handle and large ergonomic clutch for increased durability, strength and torque. Wide prong hook for secure anchoring. Metal drive gear resists gear failure under heavy loads. Durable aluminum housing provides impact resistance.