This version functions the same as a chain martingale but has the addition of a buckle. This allows the owner to open the collar like a regular buckle but use it as a chain martingale.  Great for dogs with sensitive ears or that have broad skulls.

Correctly sized martingales should have at least 2 fingers widths between the O-rings attached to the webbing so that when pulled taught they never touch.

Please use care with this tool and remember that your best friend is on the other end.  Dog necks are sensitive and harsh corrections may injure them.