We like capacitors so much we made a kids' show about them. They're super handy and it's really helpful to have a variety lying around to pick and choose from.
This is a 10 pack of 100uF 16V electrolytic capacitors which can be used with any DC voltage up to 16V. They have a tolerance of ±20% and long flexible pins that make them great for perf or breadboards.
Remember that electrolytic capacitors are good for low-frequency filtering (~1KHz or less). For higher frequency, pair up with a ceramic capacitor (ceramic capacitors).
We use these capacitors in our own kits and they're great quality. Each has nice clear labeling on the body as well in case you have a capacitor mix-up.