This is all the stuff I need to fix my hair into a proper ballet bun. I don't leave home without it. Well, except for the volume hair powder. That I apply after my hair has been blow-dried. You sprinkle a bit onto your palm, rub both palms together and work it into hair. It gives fine and slippery hair more volume and "grip", which makes buns a lot easier to do!
The other bun-essentials are more or less obvious. You need elastics (use the ones without metallic bits), pins and bobby pins, and snap-clips. Snap-clips hold better than bobby pins, but if you're going for a sleeker look or are going on stage, use pins that match you hair color. I always carry extra, and have been known to fix friends' hair emergencies as well! What you don't see here, and might wonder about is the absence of hair nets. I'm not a fan of nets as they're just another thing to fiddle with. And I don't really need it; once I have my bun all pinned it stays in place. Add some hairspray and I'm good to dance!