The Korsteel JP Flexi Bits are made from hi-tech plastic which has been moulded around a core of stainless steel. The flexi mouthpiece is warmer than a traditional stainless steel mouthpiece. The flexi mouthpiece is a good choice for younger horses and those with a sensitive mouth. This Mullen Mouth Snaffles main action is on the bars of the mouth and the horses tongue. Extremely mild and is a perfect first mouthing and ridden bit. The loose rings allow the horse to move the mouthpiece up and down in their mouth. The mullen mouth encourages the horse to accept a contact. This bit is dressage legal. The plastic should be checked before every use for sharp edges where the horse may have chewed the mouthpiece. Ref: UTWB237