This page has the Black Patent Leather Spiked Collars range. The Black Patent leather used here is 1.5mm thick and has a gorgeous shine to it. In each collar style there is a choice of which backing you can have on the inside of the collar, whether it be in pink leather, red leather, silver leather or just plain black leather. The black leather is thicker than the coloured leathers. Feel free to leave your neck size down on your invoice for a custom fitting.