Is this bit dressage legal? (similar to Hippus)

[JessPickle]

Supposed to be like a Hippus. looks like the kind of thing I want but not sure whether it would be dressage legal.

http://cotswoldsport.co.uk/shop/index.php?main_page=product_info&cPath=65_66&products_id=504

 

[Laafet]

No, not legal.

 

[JessPickle]

No, not legal.

Dam thought that would be the case, but worth checking!