Model: Soft Rubber Pipe Bits
Length: 0.72 in. / 18.33 mm.
Width: 0.52 in. / 13.41 mm.
The tips I received were too big for the bit. I ordered Brigham tips because I also ordered a Brigham pipe. I was fortunate to still have one from another order. It was a BJ Long.
I was a skeptic but after using them I am hooked these are very comfortable and making my pipe smoking a pleasure.