Curb Chain Included
A pelham with a Cambridge port to allow for just a little tongue room right in the centre of the bit. The Vulcanite softens the effect, "warms" the bit but can be bulky in a small mouth.
Vulcanite is a hard plastic type material giving a firm but "warm" feel. It is also normally quite thick so that the effect is to produce a gentle bit in a firm material built over a metal bar for strength.