One of my larger Rhodesians, well over two inches in diameter and very thick walls and it is a sitter. This mouthpiece material is beautiful, it is very similar to traditional Cumberland but with just a bit more red. It is a very nice contrast to the black stain. This is a nice sized piece, at least a Gp. 6. Nice blast and traditional colors. Hand cut Red Cumberland mouthpiece w/Delrin tennon, hand made solid Sterling Silver fitment. Thank you very much for looking.