The smooth side will feel soft and comfortable. If you use the 2 side constantly, you will find a special feeling like I never have before. A model that incorporates TENCA DEEP CUP (feels solid) and TENCA SOFT TUBE CUP (feels soft) put together.

If you use both sides continued. You will discover a special feeling like I never have before.

Always use MOI lubricants for best result
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