2.And Notes: When roller becomes dirty, twist rollers to expose new cleaning surface. When roller becomes completely soiled, remove and wash off using mild soap and warm water. Heavy soiled blinds may require washing.5.Mini-Blind Cleaner with 7 rollers, use special microfiber fibers, strongly attracts and holds dust, don't drop hair, don't rub off3.Use On: Window Conditioner, Venetian Blind Blade, etcSize: 13.5cm x 16cm/5.31" x 6.3" (Approx.)5.4x6.4x0.6in) Light weight0.2lb4.Detachable, when roller becomes dirty, twist rollers to expose new cleaning surface. When roller becomes completely soiled, remove and wash off using mild soap and warm water1.Package include: 3Pack Blue Handheld Mini Blinds Cleaner Shutters Designed to clean all types of blinds washable and rust proof insert mini-blind cleaner, one roller between each slat. Move mini-blind cleaner and forth to wipe blinds clean. magic window groove cleaning brush Remove mini-blind cleaner from blind.