This is a leather bridle that attaches to a side pull hackamore.  

To get the correct size measure around the nose where the halter noseband fits for the hackamore, and for the bridle measure from the side of the noseband behind the ears to the other side of the noseband.

mini or small pony noseband up to 17".....bridle lets out to 29"

Cob (large pony/small horse) nose up to 19"....bridle lets out to 36"

average horse noseband up to 23"....bridle lets out to 23"

large horse noseband up to 26"...bridle lets out to 45"

draft horse noseband up to 31"...bridle lets out to 52"

The bridle and the chinstrap of the noseband adjust with a roller buckle.  I will be glad to make you a custom color.  Just send us a message!