What Are the Best Rollers/curlers for Long Thick Hair?

I also have a Chi hair straightener and have recently learned how to curl my long, very thick hair with it. I have found that it really doesn't take anymore time than regularly straightening it, about 10-15 minutes. Investing the money into the Chi is definitely worth it, I have had mine for at least 7 years, and still works perfectly. I watched a video on youtube on how to curl your hair with it, and it was really easy. Love that it makes my hair nice and smooth like straightening it, but gives it a lot of nice curls. I just have so much hair I couldn't imagine trying to put curlers in it, I would need at least 2 sets of any kind. When I was young my mom would put steam rollers in it, and it worked for awhile. The curls I get with the Chi have stayed in until I wash my hair, about 3 days.

I have long straight Asian hair and I use Conair velvet rolllers. They are all the same size. I got them a few years ago so you might have to hunt for them. I think I bought them at Target or Walmart.

I have long, thick, heavy hair and have not found any hot rollers that really work. A Conair set of 8 very large rollers that heated up quickly did the best job but even that was just mediocre.

I have had a lot more luck with a ceramic flat iron. Mine cost about $100 5+ years ago but it still works great. You can get curls with a flat iron by flipping the barrel up or down one turn and the running it down the length of hair, and the curls are uniform, smooth and stay all day. It's a pain to do them one at a time though.

If you can find ceramic rollers that use the same sort of material and heat that the flat irons use, I would try those.

Rag curlers are best and less damaging to the hair.
You can put the hair up when it's slightly damp and let it dry that way (sleep on it) then you'll have great curls that will last a long time.
There are some heated rag curlers (Remington Heated Rag Rollers) but non heated will work as well.
Anything that heats your hair up will damage it, so if the hair is long and you want it to survive with minimum split ends - avoid heat.

I have long, fairly thick hair and sometimes use conair steam rollers. These are the only ones Ive tried, so I'm not sure how they compare to others. I like them, they give a nice wave and lots of body to my hair. The set I bought contains medium and large rollers so the curls are very loose. Misting hair with hairspray prior to rolling helps the curl stick.