Automatic adjustable retractable aircraft cup

Airplane cup:
Advantages: free hands, relieve male desire, avoid the harm caused by hand friction on tintin, can also achieve physical conditioning, and has the effect of auxiliary treatment for premature ejaculation.
Japanese British brand, the use of TPE medical silicone material, not cheap sponge. It feels real, soft and full. The inner wall design of the real inverted mold, when using, there is a pleasant experience of crisp and tight, easy to clean environmental protection design, and can be reused.
Suggestion: Apply lubricant to use.