Anal probes aren't just the stuff of sci-fi alien invasions we have them here, too. Where butt plugs are typically short and fat, these are long and skinny. These anal probes are great to break in the beginner, and are also sure to please the more experienced tushy lover. Anal probes are usually made out of the more flexible materials, such as vinyl, rubber and silicone, but there are also a few glass and metal models out there. You can also get them in a vibrating model if you want to add a little something extra to your anal probe play.