Pipe inside shower drain blocked?

[supersh]

I've probably very ignorant but I'm trying to clean the slow draining shower drain in my teen daughter's en-suite and when I took the chrome cover off I was surprised to see what looks like a pipe inside the drain, taking up most of the space. What kind of drain is this and how do I clean it?

[stoneyboy]

Hi supersh
Looks like the bit in the middle is a removable trap - try pulling it out or perhaps twisting it.
Regards S