Im not keen on Anal beads i find them to sharp and pointy, and really only benefit you when your about to cum, when you pull them out.
I also have a butt plug, i do like it but its a bugger to get back out due to the shape of them, my ass just tightly holds on to it.
i now use a small slim dildo, silver one. same thickness all the way down shaft. but then i dont just have anal, i have to have stimulation on my clit or in my pussy to have any benefit from Anal. Or my OH's cock with the help of that anal lube we bought called anal ease best lube on the market. you will see it in my reveiw