Super high speed 3X1 rewind; Chalk Catcher with patented Spring Cleaner minimizes chalk spray, reduces waste; Gear lock makes keeping a taut line a snap; Rugged crank handle with spinner for easy rewind; "Glovable" grip for cold weather or rough condition; Huge BigMouth® opening to ease fill up and a no-leak stopper to keep it shut until you want to chalk up; String-Polyester with a core for strength and shape