Aktik, have a look at this site
http://www.lik-sang.com/catalogue/product_list.php
It has a second to none reputation for reliability.
Scroll down the catalogue and you'l soon find the item you mentioned.
Click on the product and it will give you even more info.
There's a faq section as well.
The only down side is that it's temporarly out of stock.
You might want to start a new thread asking if anyone knows were it can be obtained.
Post back here to let me know how you go on.
ARGO.