★【Original Product】All the products sold by Protector Dental Store have a Anti-fake label on the packing box , you can check if original from COXO website .Many fake and high copy products online , please order from Formal store :Protector Dental Store ★【Warranty】2 years .Within the warranty period, we Protector Dental store will be responsible for shipping any damaged spare part for free into your destination. If the faulty item needs to be sent back for our store for repair, then our store will cover the shipping back fee , then will do the repair and ship it back to you for free also. ★【Mainstream root canal file system 】including mainstream root canal expansion system, like Dentsply wave one,VDW recipro ,FKG,M&M ,SOCO... no need to set up , just choose and use