Pros: Cheaper, lots of colors
Cons: No numbers, can break
These are okay (and any other size, probably) to use if youre not doing any serious record keeping and just want to divide by year or somthing. There's plenty of colors and combinations to keep you busy for a while, but I've always liked Bandettes better. If you plan on showing any of your birds, you'll need a bandette anyway, and an up side is they do come with numbers. If you have a ton of birds, you can use both in certian ways to mean different things. The downside to these is they do get old and brittle, and break.