Myler Plain Eggbutt Snaffle 06 Mullen with Low Ported Barrel Bit Size:6" 152mm Use the size guide (click Use the size guide (click 'Sizing' on the tabs above) to ensure you have the closest fit for your horse or pony Full cheeks help to aid steering while stopping the bit from being pulled through the horse's mouthDouble jointed mouthpiece prevents horses from fixing or leaning on the bitCopper lozenge is warm and palatable The 06 ported mouthpiece is the Myler alternative to the traditional mullen mouthpiece The 06 mouthpiece doesn't offer as much tongue relief as the other Level Two Three mouthpieces due to the low port restricting the tongue