The Japanese Jex Durable 1000 condom contains different lubricating oil inside and outside the sleeve. The top of the sleeve contains specially processed lubricating oil, which can increase the endurance of men. Since the sperm storage position on the top is filled with lubricating oil, there is no need to squeeze out air when wearing it.
The shape of the condom has also been carefully designed, with a narrow neck, which can tighten the penis of men and strengthen endurance.
-There are different lubricants inside and outside the sleeve.
-The top of the sleeve contains special processing lubricant.