Triple Bar Island or Dining Table Light

Can you confirm: what is metal and what is glass? what is the overall weight?
This fitting weighs 13.2 kg. The fitting is all metal except the glass diffuser to the underside of the three shades on the bar.

On the electric feed, I get the feed to the ceiling rose, but where does the power get to the actual lamps from the ceiling rose? Is your picture without wiring?
Looking at the picture - the wire goes down the right hand chain suspension (it can be seen slightly on the image). It then feeds into the rods of the fitting and the wire traces the rods where you cannot see it.

Where does the electrical feed route through to the lamps? Does the feed include an earth connection?
The feed-in is in the ceiling rose. This fitting is a Class 1 fixture and requires an earth connection.

How much does the complete unit weigh?
This fitting weighs: 13.2 kg.

What is the maximum length of bulb, i.e. screw fitting to the glass, these fittings can take?
The maximum length lamp this could take is 100mm.

Can you let me know the length of this pendant i.e. horizontal length?
The horizontal length is 1334mm.

Please can you tell me the length of the horizontal bar holding the lamps and the dimension from the base of the lights to the lowest point of the chain attachments (ie to where the chains attach to the two vertical bars)
The horizontal bar measures 1240mm (40") and the height from the bottom of the light shades to the chain is 1520mm (60"). Fitting is supplied with 305mm (12") of Chain with 4 Quick links. The overall height from ceiling to bottom of shades is 2000mm (79").