These plugs start smaller than some of the other sets and their shape is far less intimidating. For health and safety, PALOQUETH recommends thorough cleaning before starting, both the plug(s) and the person who will be using. You should also apply the lubricant liberally. Since the material is silicone, you can use almost any lubricant you prefer, but the provided sample tube of PALOQUETH's water-based lubricant is only enough for one, possibly two trials. so you need to have a ready supply on hand before you start. Whatever you do, don't skimp. The risk of serious injury from internal abrasion or tissue tear is high if you use insufficient lube. I can't stress that enough. And, please, read the instructions all the way through, twice.
What I like best about this set is that it's supported by PALOQUETH. I've bought and used a few of their products, and they have always been courteous and helpful whenever I've had a question or encountered a problem, which has been so infrequent as to be unimportant compared to their excellent service.