I didn't measure, but 9" probably isn't far off. Onlinedude's assessment is right, Tyler Roberts is REALLY thick. And he gets and stays fully hard as a rock. I was stunned when he first pulled down his pants and then got very scared when he got fully hard. I was actually joking with him while he was railing me, telling him to think about dead puppies or something sad so that his dick would get softer/smaller.
Being the sweetheart and professional that Tyler is, he was very gentle and slow at first, getting me use to his full girth and was very careful not to hurt or injure me. Then once I was loosened up, ready, and willing he went to town and railed the shit out of me. That boy can go deep, Jesus. (He's also a great kisser btw). After over 90 minutes and two rounds, he was raring to go for a third round before I jokingly cried out "uncle!" and we spent the last 30 minutes cuddling and chatting.
He's really friendly, engaging, and overall just a genuinely nice young man with a good head on his shoulders. He takes the escorting seriously, and he really focuses on the client and ensuring that it's an enjoyable and positive experience. My experience with Tyler was one of the few times when afterwards I thought, "Wow - that was worth every penny!".