Coronet Pelgam Mullen Bit coronet Sale! from $ 39.99 Qty. Add to Cart Qty available: 1 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. The Mullen Mouth Tom Thumb Pelham Bit in stainless steel has 4" cheeks and includes curb chain and hooks. This bit design places even pressure on the mouth, lips and bars and exerts some leverage.