IRWIN STRAIT-LINE SPEEDLINE 100-ft Chalk Reel has a  wide door for quick and easy chalk fill; as well as, a 100-ft abrasion-resistant poly line provides 5-6 strikes per pull for all of your DIY projects.   The 3:1 gear ratio rewinds line 3 times faster than traditional chalk reels.  This chalk wheel features a robust steel handle and large ergonomic clutch for increased durability, strength, and torque during all of your DIY projects.