Created by our partner Wolfram Leather.

The fusion of comfort, control and couture, this easy latch collar is offered in classic oxblood brown and black onyx from House Of Wolfram to make an undeniable claim of the wearer. Following in the footsteps of the Wolfram Cuffs, this collar is also reinforced with ballistic nylon and steel. Its inner padding also ensures extraordinary comfort for long term wear both for scenes and for everyday use. House of Wolfram utilizes completely nickel-free hardware for any metal that may be in touch with skin. 

From the creator:

This fully adjustable quick locking collar features a "size once and done" style for quick and easy wear and removal. You calibrate it by fitting the screws on the sides to your neck size once, then it easily comes on or off with a latch or locking post.