Wilson Jones Heavy Duty Round Ring View Binder, 1/2 Inch, Customizable, Black (W363-13B) Customizable cover and spine simplify binder labeling and personalization 1/2 inch round ring binder holds 120 sheets Features our strongest binder covers for years of reliable use; Custom formulated, PVC Free polypro material lasts up to 10x longer than vinyl Never-gap rings close tightly to keep papers secure Two interior pockets provide additional storage