Patented clip designed for easy handling of documents. Rivetless construction. Unique slip -out mechanism facilitates one hand operation to lock/ unlock clip in place. Simple & swift. Dimensionally accurate components makes filing effortless. Patented new "Uniqlip" & wire prong duo mechanism. Can file in upto 150 sheets. High quality finish with extra smooth edges. Full length springs reaching upto the base of prongs. No obstruction in paper path when shuffled.