Liverpool Inno Sense port 20 mm from Trust

Primal Dutch they are, the bits from TRUST Equestrian.
A TRUST bit is entirely handmade, the Inno Sense bits are handmade in the Netherlands.

Bits from the Inno Sense collection can be used for all horses but are particularly suitable for young horses and horses with a sensitive mouth. The plastic used is FDA approved, meaning the material is non-toxic and contains no plasticisers.
Horses ridden on an Inno Sense mouthpiece follow the hand easily and also accept the bit quickly.

The Inno Sense port mouthpiece has a tongue arch that provides less pressure on the centre of the horse's tongue. More tongue freedom is ideal for horses that have a sensitive tongue or horses that stick out their tongue.

The Inno Sense port medium is made of elastic plastic, very slightly pliable, much less so than the flexi soft. The Inno Sense port hard is also made of elastic plastic, but is harder than the tongue arch medium. The Inno Sense tongue arch hard is rigid.

NB: Inno Sense mouthpieces, unlike metal mouthpieces, are considerably softer. This is what many horses like about these bits. However, horse teeth are significantly harder than plastic and can shorten the life of an Inno Sense mouthpiece.
If the bit is properly on the layers, damage to the mouthpiece is quite unlikely, but not impossible due to teeth that are too sharp. Such damage is not considered a manufacturing defect.