1. Male trainer: This male vibrator is designed to help men achieve firm erections through regular training and use, prolong sexual intercourse, and enhance endurance and power during intercourse. Its unique design ensures effective training, promoting growth and erectile strength. 2. 10vibration mode couple vibrator: Specially designed for couples, men can wear it during penetration. This vibrating cock ring features ten vibration modes to intensely stimulate the Gspot and vagina, teasing and arousing your partner. Both partners enjoy powerful vibrations for even stronger orgasms! 3. Massage nodules with large protrusions stimulate the vagina: The prominent massage nodules directly stimulate the vaginal walls during penetration, enhancing pleasure and improving the female sexual experience, quickly bringing your partner to orgasm. 4. Soft and elastic, suitable for different sizes: The hollow silicone design improves breathability and comfort, while the ultrasoft material ensures flexibility for all sizes.