The Coastal Pet No! Slip Martingale Adjustable Dog Collar with Buckle is designed to provide a secure, comfortable fit for dogs that slip out of conventional collars. Its limited-closure design helps control tightening.

Colours: Black, Blue and Red.
Collar lengths: 10–12, 14–18, 18–22 and 22–29 inches. Not every colour is available in every length.
Buckle closure for convenient fitting.

Fit guide: Measure high on the neck where the collar sits and leave room for two fingers underneath, as illustrated in the sizing guide.