New with tags 5″ Neil Merrill by Myler stock shank gag MB12 low port. Stainless Steel Neil Merrill Short Shank Gag – 7″ Shank with Sweet Iron, low port, with Copper Inlay. This mouthpiece is made of polished Sweet Iron which naturally oxidizes or rusts. Harmless to horses, it has a sweet taste and promotes salivation. This bit can be used with or without a noseband. Very nice and popular bit!