Bombers Tom Thumb Colin Miles
The Tom Thumb is similar to the Ring bits or Dutch Gags and introduces poll pressure as well creating leverage on the mouthpiece. The main difference however is that instead of the additional rings at the bottom it has an extended shank with a ring on the end, this shank is bent and set to run at 45°. The effect this has is to ease up the poll pressure and leverage on the mouthpiece.
The Colin Miles is a great schooling bit with a wide centre piece creating greater tongue pressure and reducing bar pressure. The rings give the horse something to play with and help keep the horses attention on the bit.
This particular joint exerts more pressure than the Control Plate or Elliptical.
Supplied with a nylon back strap.