Straight Castroviejo Perma Sharp™ Needle Holder, 14 cm (5.5") Straight Castroviejo Perma Sharp™ Needle Holder, 14 cm (5.5") NH5020R Perma Sharp Needle Holders are used to grasp and guide the needle when suturing. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.