Sometimes the beads are different sizes, starting small and getting progressively larger as you move up the string. Sometimes they are the same size all the way through. At the handle end, there is a larger loop or something else to allow the user to pull the beads out, and to prevent the entire string from slipping up into the rectum. Like most sex toys, anal beads don't come with instructions.
Anal Beads - How to Use Anal Beads [Beginner's Guide with Reviews]
The Sex Toy That'll Make Your Orgasms So Much Stronger
For those of you that have organically found yourself googling "anal beads" in the depths of incognito mode possibly hoping to find butt jewelry, I'm sorry. Contrary to the name, anal beads are not free-floating pendants for your rectum, although that is certainly a Shark Tank episode I would watch all the way through. Rather, the sex toy gets its name from the bulbs attached to a cord, resembling beads on a string. The cord makes retrieval easy, which is important as much of the sensation associated with anal beads is actually in the removal. Sometimes each bead gradually increases in size going up the string, and sometimes the beads are all the same size.
Anal beads are a sex toy consisting of multiple spheres or balls attached together in series which are continuously inserted through the anus into the rectum and then removed with varying speeds depending on the desired effect commonly at orgasm to enhance climax. Anal bead users enjoy the pleasurable feeling of the ball passing through the narrow sphincter of the anus. Anal beads are available in many sizes, with individual beads measuring from 25 mm in diameter to mm diameter or larger. Most users enjoy beads of approximately 45 mm, but some will become more adventurous with experience, and try larger sizes.