Trust Sweet Iron double-jointed eggbutt snaffle 16 mm

This eggbut has a double jointed mouth piece and gives more pressure on the tongue than a single jointed bit. 

The eggbut:

The eggbut is a common multi-dicipline style of  cheekpiece. It comes in different vaiarities, like jointed, double jointed and straight. It has a fixed mouth piece wich prevents pinching  the edges of the horse mouth as is seen by a loose ring. It also offers more moderate lateral control. 

The trust bit types,The Sweet Iron:

Sweet iron will rust when it comes into contact with (air) humidity; the surface rust tastes sweet and naturally stimulates the saliva production. This will cause the horse to salivate more which in turn encourages better acceptance of the bit. The rusting process (oxidation) changes the blue colour of the TRUST-bit to a brownish-grey.If a sweet iron bit is not used for a while, an orange-brown rust layer may develop on the mouthpiece. Simply remove this by wiping the bit with a damp cloth.