This collar is handmade with love, and is available as Genuine Leather or Vegan/Faux Leather! Both have the same thickness (2 mm) and are very sturdy. The chain and rings are designed to be able to be pulled on ;) Always pull slowly though to avoid any potential hair/skin getting pulled or anything like that! Disclaimer of course is to use at your own risk. I also recommend wearing the chain at the back of neck if applicable. <3 ;) The metal for the chain and rings is stainless steel, however i am not certain what was done to make it rainbow color- for those wondering about the type of metal. I have sold tons of these however, and never heard anyone mention any irritation. I offer this design in non-rainbow as well, so be sure to check out my page for more :) Matching Leashes available on my page :) Please be sure to find me on instagram / tiktok to see more of my work :) @_SxbjectDelta_
