3/8" Mini O Ring Black Vegan Leather Martingale Collar Choice of Leather:Genuine Soft Garment Leather which allows for 1" adjustment

which allows for 1" adjustment each way in 1/2" increments

or you can purchase a nickel free heart lock here

COLLAR MEASURES 15

Genuine Preciosa Cosmic Crystal heart

3/8" Mini O Ring Black Vegan Leather Martingale Collar Choice of Leather:Genuine Soft Garment Leather which allows for 1" adjustmentCreated using soft, black vegan leather. Featuring on the collar; Premium Rainbow Hardware. Mini O ring with chain. Width: 3 8" Important sizing information: Please ensure that when you measure your neck, your measurement reflects a comfortable length; not too tight and not too loose especially not too loose. Ideally, you'll want to measure where you'd like the collar to sit on your neck. Provide your neck measurements as they are, there is no need to