The Flexi Rubber Mullen Mouth Loose Ring Snaffle from Korsteel has a basic mullen mouth. The 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 soft and flexible rubber is ideal for horses who can be fussy with traditional stainless steel bits as it is warmer in the mouth. This bit encourages the horse to take the contact, yet the loose rings still allow the horse to move the bit up and down in their mouth with their tongue. This bit is dressage legal. The rubber should be checked before every use for general wear and tear.