1,Material:100% Microfiber. 2,laundered by ultra clean water. 3,Suited to class1000~class10. 4,Vacuum Packaged ... Wiper,Polyester Wiper,Polyester Wipes,Lint Free Wipes,Cleaning Wiper,Microfiber Wiper,We have been in this trade for 8 years ... . Features *100% continuous-filament Microfiber*softness and good absorbing water*Vacuum Packaged in JUJIE'CleanRoomBenefits ...