IRWIN Tools STRAIT-LINE Chalk Line, Classic Reel, Blue, 100ft (IWHT48441BC)

MULTIPLE STRIKES PER PULL: 100 ft. abrasion-resistant poly line provides 5 to 6 strikes per pull, IMPROVED HOOK STORAGE: Hook dock is nested to help reduce hook snags, QUICK AND EASY CHALK REFILLS: Designed with a wide door for increased visibility when refilling, HIGH-COMFORT, INTUITIVE DESIGN: Slim profile enhances your grip for low-strain use; center line can be used as a plumb bob, DURABLE CONSTRUCTION: Aluminum housing provides impact resistance, REDUCED LINE DAMAGE: Innovative spool design helps preserve line and aerate chalk, SIMPLE LINE RETRACTION because of 1:1 gear ratio, ENHANCED STRENGTH AND TORQUE: Robust steel handle and large center hub add durability