Wow I really don't like any of the ones you're interested in. After owning several jelly and rubber toys, I made the decision to stick with quality materials. If you choose a vibe made by a respected manufacturer, in say silicone, it can last you for many years. If you're on a tight budget, check out the Astrovibes from Fun Factory currently going for around $10 with the EF promotions. It's not the best vibe on this site, but it is worlds beyond the three you're looking into. Good luck! Let us know what you decided.