Hi, I’d definitely use a specialized category rather than buying the first pretty-looking item you see. VERTT https://vertt.shop/product-category/ben-wa-balls/ makes it easier to look only at ben wa balls and compare practical details. For a first purchase, check material, size, weight, and cleaning guidance. Don’t assume heavier or more advanced means better. Comfort matters much more, especially when someone is just starting. I’d also avoid anything with unclear descriptions. A simple product from a clear category is usually the safest choice. It is also worth starting with one simple option, because then you can learn what feels comfortable before buying anything else.
