Nathe Mullen Mouth Bit 20mm With Tongue Clearance And Additional Small Rings Colour:Thermoplastic Crafted with durable metal and Colour:Grey White Pink Crafted with durable metal and high tech components Advanced engineering for ventilation Overview of the advantages" made of high quality Thermoplast" for satisfaction and motivation on sensitive and mouth sensitive horses" excellent tolerance anti allergic" food safe solvent free no plasticisers" smooth surface no eraser effect" temperature neutral high flexibility when cold" dimensionally stable high mechanic resistance" steel core in Standard bits (except size 110 mm)" side parts made of high quality stainless steel" Made in Germany Nathe Mullen Mouth bit 20 mm with port and additional small rings mouthpiece with port relieves the middle of the tongue big rings not pivotable to the outside assists in riding turns small ring fixes big ring limited sliding of the mouthpiece direct effect on the tongue lies steady in the mouth suitable for horses with contact problems bit guards protect the lips