This is the AL-KO AKS 3004 .......... or in Blue the Winterhoff WS3000
The AL-KO can only be used with the extended neck towballs & uses two levers........... alko towball guide
The Winterhoff can be used on either type of fixed towball & is single lever WS3000
it seems to have a black handle and looks a bit Buck Rogers if you know what I mean,have a look at http://www.baileyolympus-s2.com/features-and-gallery and see what you think. On the list of features if say it is a AKS 3004 but to me it looks different.
Proven quality in new design - this is the new AKS 3004/3504.
As the only anti-yaw coupling with 4 friction linings.
The new AKS ensures your security and relaxed travel. In addition to optics, you will be convinced by the intrinsic values: