Henri de Rivel HDR Pro Flat Breastplate Martingale Horse

I believe it only aids in the slipping back of the saddle. If your saddle is slipping side to side, you may need the assistance of a saddle representative to determine whether it is the right fit for your horse. Another option is to see if the girth is secure enough to keep the saddle in place, or to use no-slip saddle pads.

The long bottom piece with the loop goes between the front legs and connects to the girth's center ring. The bridle's bottom noseband under the horse's chin is attached to the middle long piece. The horse's neck is encircled by the round, circular part. The top two straps are attached to the d-ring. On either side of the Pommel, the rings closest to it.

There are no clips included in this kit. A clip can be easily attached to the leather buckles that attach to the saddle for quick attachment and release. I'm not sure what you mean when you say D ring snaps.