The Dee Ring is very similar in action to the Eggbutt, it will prevent pinching of the lips and gives a slightly more solid feel against the side of the face. It also prevents the bit being pulled through the mouth. The release is slower and some slight poll pressure is introduced.
The Leather Snaffle is a lightweight mouthpiece covered in soft, yet extremely hard-wearing, leather. The leather encourages salivation and a softer contact and is especially useful for horses that are particularly sensitive, or even those with allergies to metal.