Flexi Bits are made from high quality polyurethane which has been moulded around a core of stainless steel. The flexi mouthpiece is `warmer` than a traditional stainless steel mouthpiece. Flexi mouthpieces are a good choice for younger horses and those with a sensitive mouth. The bit has a rippled mullen mouthpiece. The eggbutt rings prevent pinching, whilst the full cheek bars help with steering.