Glasser braided carbonfibre 2005BCF / 2005BCFK violin bow

Braided means that the carbon fibres are solid through the bow rather than it having a hollow core like the cheaper bows.  Metal tip.  Available in both nickel and sterling silver mounting and with round or octagonal stick.  The sterling silver version is available with ebony or snakewood frog (the silver ones are probably only available in the UK from me) 

The sticks are made the same way and of the same materials for all models (including the gold mounted, which costs an arm and a leg) but selection is made from the sticks so that the best sticks are gold or silver mounted and the next sticks down are nickel mounted, with the next ones down from that being used for the BCFX bow.  So the price difference is not only about the mountings.