What type of connectors do I need

Hi I'm a complete novice so please don't go too hard on me. I was wondering if anyone could tell me what type of connectors are in this picture, as in what are they called. I know what they are for. Thanks in advance.
TheYikes
http://myremedy.ie/pics/speaker.jpg

They look as though they could be banana sockets.

You need speaker cable and wire strippers.

They are dual purpose connectors. You can either put bare speaker wires that you have stripped and twisted around the screw terminals and tighten them (the red and black plastic ends screw down to tighten and trap the cable making a good connection) , or you can fit banana plugs to your speaker cables and plug them into the holes in the ends.

They usually have a hole through the terminal that you can put the wire through, rather just wrapping it around.

They are called binding posts:

https://en.wikipedia.org/wiki/Binding_post