masturbator sucking vacuum Penis Trainer

1.the change in size can be observed through the cylinder

2.8 frequencies, 4 negative pressures and 4 suckings

3.USB charging

4. lt can be operated with one hand

5.Rotating disassembly is convenient,fast and easy to clean2.8个频率，4个负压，4个吸盘USB charging4。它可以单手操作。旋转拆卸方便、快捷、易清洗