Prefer them separate
I've bought two sets of these and looking to buy a third. I prefer to wear them one at a time because they tangle together, but on their own they're perfect. I wear one 24/7 and they last about 6-8 months each, not bad considering it goes through everything in life with me including showers, sleeping, everything. They've never tarnished but maybe some people's body chemistry is different so they might tarnish for some.  Yeah sure they break after a time of constant use but they've held up far better than any other jewelry that I wear 24/7, especially for something so thin and dainty.  I will continue to buy these for as long as I can.
Rating: 5 stars