The Guardian Gear Martingale Control Collar provides twice the safety and control of ordinary collars. Their size is easily adjustable and they have a limited range of choke collar action which guarantees the collar will not injure pets.
They are available in the following colours and sizes:
Blue
Small: 0.6" W x 13" - 18" long Click Here
Medium: 0.75" W x 16" - 24" long Click Here
Large: 1" W x 22" - 34" long Click Here