I love this set, it’s great for beginners and more advanced with the large size, which is my favorite. I love metal butt plugs and never have found a vibrating metal butt plug before , yet alone a set of 3 of them, lol. They are easy to clean, and my absolute favorite thing is that they are rechargeable. My fiancé and I used these while having sex, and it just amplified the entire experience. We used a water-based lube, which is my go-to because, for a lot of toys, you can’t use silicone-based lube on silicone toys, but you can still use silicone-based lube for these since they are metal, so don’t be afraid if that’s all you have.