Harris Tweed Martingale Collar 
 
Suitable for greyhounds and whippets etc Dog whose heads are narrower thantheir necks
 
These are adjustable from 12" up to 20" so are suitable for most greyhounds and are 2" wide, if you need a larger size, just let me know, or if you would like a specific colour, just let me know
 
The collars are lined with the same fabric that seatbelts are made from so they are strong yet flexible with high quality metal D rings, loops and adjusters