It would have ordinarily seemed strange that I had to research rubber bands before buying a bunch of different sets, including this one, for our children. But since rainbow loom is the rage these days, I had to make sure I ordered sets that my boys would be happy with! That being said, I wanted sets that weren't overpriced (I saw other listings for $20 for 300 rubber bands!), came with sufficient supply of S or C clips, and were shipped by Amazon so that I could get Prime shipping. This set met all criteria. The boys are happy campers having received the rubber bands in 2 days!
If you are buying several sets of rubber bands in different colors, I highly recommend an organizer. I bought ArtBin 6-Compartment Tarnish Inhibitor Medium Box, Translucent Clear and it is a great way to keep all the rubber bands organized and, more importantly, avoid rubber bands from being scattered all over the house!