Description of the DJ from the official Ortofon website:
These are the replacement styli for use with only the Ortofon Concorde MKII DJ Cartridges.
Please note, RIOTSOUND is an AUTHORIZED ORTOFON DEALER as well as a direct partner of ORTOFON USA. Every ORTOFON product we sell comes factory sealed and includes an original factory warranty. With nearly a decade of pro-audio retail experience, at RIOTSOUND we offer you the expertise, commitment and attentive customer service to make sure you will be 100% satisfied with your purchase, each and every time. Please shop with confidence and peace of mind.
Shop with an AUTHORIZED ORTOFON DEALER and receive a 1 year warranty on your item:
All of Ortofon’s cartridges are backed by a 1-year guarantee against defects in workmanship and materials when purchased from an authorized Ortofon dealer. Should your item malfunction as a result of faulty materials or workmanship, Ortofon will repair the defect(s) or replace the merchandise. Ortofon’s warranty does not cover expendable items or used/demo items.