Im a veterinarian in Cape Town.I have launchd a pet safety product range, www.savvydog.co.za. I also own a gundog which is where I saw the biothane collars. Besides for requesting a sample I would very much like to discuss Savvydog being the sole distributor for the biothane materials in South Africa.
I will phone your number in the week. I think this is a fabulous product. 
Kind Regards
Dr Melissa Charles