any tips for detail sanding?

[steveo3002]

ive got a few spots i need to shape up and then sand for paint etc

trouble is theyre tight corners, smaller than were i can poke a finger in etc , is there anything like abrasive sticks that would go in tight corners

[steveo3002]

yeah ive kinda been doing that , its just some spots theres no room to rub back n forth enough

i sort of need like a pencil end with abrasive on it

[steveo3002]

yeah ive been shaving it with a blade , just seems like hard work lol

in trying to shave off a molded on seat belt on some car seats , need to get in the pleats and creases etc , should be nice if i can do it well