Only their size, shape, and color are similar, not their taste.

I had to buy mine on Amazon. They were expensive and not worth it. I kept the rest in the freezer and I doubt I'll ever use them again. Wasn't worth the purchase, IMO.

I'd stick with the capers...

Edit: Price is down to $8, I paid $12 at the time. https://www.amazon.com/gp/product/B0013V9XYE