Dust in a crack needs a different approach from dust on your couch. Your mousepad, keyboard, and a bag opening call for something more specific than a broad cleaning pass.
These accessories put your vacuum's suction where the task needs it. The narrow adapter directs suction into cracks and tight gaps. Its narrow shape brings the cleaning effort into the gap itself, rather than leaving you to pass over the surrounding surface and hope to reach what is inside.
For your couch and soft surfaces, the smaller sweeper gives you a smaller cleaning option. Bring it into your living room when the couch is next on your cleaning list, then use it for the stated desk-area tasks: your mousepad and keyboard. Those surfaces are part of your home, too, and this attachment gives them a place in your vacuum cleanup instead of leaving the work area for another day.
The bag-sealing attachment serves a different purpose. It applies suction from your vacuum to a bag opening for vacuum sealing. Choose that shape when the job is a bag rather than a surface, just as you choose the narrow adapter when the job is a crack.
For the person handling household cleaning, the value is in matching the attachment to the task. From the living room couch to the desk where you work, these plastic accessories give your vacuum specific jobs beyond a broad sweep. Start with the area you want to clean—or the bag you want to seal—and choose the shape intended for it. Your vacuum supplies the suction; the attachment directs it toward the work.
HARDWARE NOT INCLUDED: Only the item named in the title is in the box. Every setup is different: depending on yours, mounting it or attaching it to an existing part may use hardware you already have, such as the original screws, or you may need to buy your own screws, bolts, tape or adhesive to suit your situation. No hardware of any kind is included with this listing.