Nathe Standard 20mm Double Ring Bit Bit Size:140mm Glutathione protects the cells from Glutathione protects the cells from the destruction caused by increasing attacks from free radicals It can also be used to train manes over Nathe Standard bit 20 mm with additional small ringsflexible mouthpiece with low portbig rings not pivotable to the outside assists in riding turnssmall ring fixes big ring limited sliding of the mouthpiece direct effect on the tonguelies steady in the mouth suitable for horses with contact problemsbit guards protect the lipswith steel coreOverview 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