There’s an old Japanese saying, "Isseki Nicho", "一石二鳥". Which means, “To kill two birds with one stone.” It’s why we’ve designed our Okamoto Harmony Vibra Ribbed condoms with row after row of stimulating ribs. This doubles the friction for maximum intensity. It’s for you. It’s also for your partner. It’s time to get busy. Detailed Specs - Color: Coloured, Shape: Reservoir-ended, Nominal Width: 52 +- 2mm, Normal Length: 185 +- 7mm, Box Weight: 40g. Made in Japan to ISO 4074:2002 standards and tested with precise electrostatic technology.