100% Pure Cotton Sterilize Cotton Ball for Medical Use Hebei Kangji Medical Instrument Co., Ltd. Base Info Ethylene Oxide Sterilization:Without Ethylene Oxide SterilizationQuality Guarantee Period:Two YearsGroup:AdultLogo Printing:With Logo PrintingSpecification:500g,Bag Description Pre:Absorbent Medical Synthetic Dental Colored Wool Cotton Ball Next:Medical Use Surgical Absorbent Cotton Roll