6" Binder 3 Ring, Cardinal XtraLife 25960 Slant-D Ring, Heavy Duty Storage Binder. Made with XtraLife material that will not stick to materials stored inside and are PVC Free. Heavy-duty cover material is stronger than standard vinyl and carries a 3-year manufacturer warranty. Slant-D locking ring metals hold 25% more sheets than standard round ring binders. Cold-crack tested to -50 degree F. Contains minimum 45% recycled materials. Holds approximately 1300 8.5 x 11" 3-hole punched sheets.