We use Falker burgees and find that they are the best available.
Colour Options - Blue, Red, Light Blue, Purple, Yellow, Orange, Black or Pink.
The burgee is made using a stainless steel shaft. The flag part of the burgee is supported by a full stainless steel frame, which reduces flapping in the wind and makes it more accurate.
There is also a weight on the front of the burgee which balances the wind indicator while the boat is heeled over. The dimensions of the Falker Burgee are 8cm x 12cm with a shaft of 38cm.