This is a 3 hook pompano rig. You can buy them just like this at walmart. That is what I prefer. The pyramid weight
goes on the bottom, there is a clip there made just for it, and at the top is a swivel for attaching your main line. For fishing around here anywhere from 2-5 oz is normal. The smallest weight used on flat days and the bigger 5oz for days when the surf is up.
If you do a google search on Pompano fishing you'll see all kinds of rigs and info. There's also alot on this forum if you browse around in the surf fishing reports and Q&A sections.