11" HYGEN FLX FRMHYGEN Microfiber Flexi Frame conforms to curved surfaces for better pickup of dirt and debris, allowing users to clean faster and more effectively. Clean faster and more effectively. Frame flexes to clean both contoured and flat surfaces for more cleaning power. Arc shape pulls dirt, hair, and debris toward the center for better pickup. Proprietary flexible compound will not crack or split, even when used with bleach or peroxide Excellent for cleaning