Hello mate, I'm Ginneko-san (silverscat_3), from Japan. I'm a computer engineer who is planning to manufacture a chastity device. and I'm bisexual with mechanophilia, managed by an imaginary keyholder. (Well, It's self-locking) So, I using Holy Trainer Nub v3 ... dead copy. yeah, It's not a problem because it works. One day, I would like to make a chastity belt like Latowaki. Thanks!