Semi-realistic dildos perform just as well as realistic ones but without the obvious details. And while they might not look like a real penis, they can come close to feeling like the real thing and performing better, if not better. They are always erect! Many of these colorful dildos are made from "jelly" that offers a soft realistic feel and retains body heat. A hint of realism can be turn on for those who find too much detail to be off-putting.