Case-it Locker Zipper Dual Binder, 2 Sets of 1.5-Inch Rings with Boosters, Red (LKR-Dual-02 RED) Base zipper binder with dual ring sets for the Locker System of binder-based organizers Sturdy water-resistant fabric with bound edges Perfect for middle school, high school, college students studying multiple subjects Like having a portable locker - bring your files on the road Available in a variety of colors, mix and match with Locker Binder System insert accessories