The Buster Roller Petros Loose Ring Snaffle from Bombers Bits has a 40mm roller link in the centre. This increases tongue and bar pressure, making the bit stronger than conventional double jointed bits. The double joint reduces the 'nutcracker' action associated with single joint bits, meaning the bit will not put pressure on the top of the horse's palate.
The Petros mouthpiece rotates, therefore this bit is often suitable for horses with a low head carriage that tend to lean on or grab hold of the bit. The increased pressure on the bars acts to lift the head while the roller increases pressure on the tongue, bringing the chin in and encouraging the horse to soften as he plays with the roller.
The blue sweet iron mouthpiece oxidises easily, creating a warm, sweet taste in the horse's mouth. This encourages the horse to salivate, gently mouth the bit and relax his jaw, and can help horses who have difficulty accepting conventional metal bits.
This bit has loose rings, which make the bit mobile within the horse's mouth, further encouraging mouthing and softening. They also allow for immediate release of pressure when the rein aids are relaxed, thus rewarding the horse for a correct response.
Please note that the blue will fade with use.