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electric pump strong automatic enlargement vacuum pump erection enlarger dildo extender sex toys for male Specification: Material:(carton packing) medical safe silicone, abs, pvc Power: USB charging Colour: black and transparent Size: as images. Package included: 1 x USB charging cable 1 x Sleeve accessory 1 x Pump (Carton Packing) Application: Physical methods increasing The length of the : 28.5cm / 11.22 inches inside Diameter: 6cm/2.36 inches Instructions for use: 1. Press and hold the power button to turn on and off. 2. automatic mode (working mode will cycle automatically) 3. Manual mode (can be switched + or-to change working mode) Operational guidelines: 1. ensure all parts are securely connected. 2. apply a little lubricant around the silicone ring to reduce friction. 3. gently insert your , make sure the seal is airtight around your . Use sestions for use It is recommended to exercise once a day in the morning and evening, 5-10 minutes at a time, pumping to the to comfortably erect, perceive the to pull, pause for 1-3 seconds, then release the pressure, pause for 3-5 seconds, then the extraction of the cycle and deflated. Note: you may not be in the extraction state for a long time, you must extract and deflate the circulation to avoid injuring the . Time of use: 1. (1 5 5) days, 5 minutes a day, up to 2 times a day 2. (6~10) days, 8 minutes a day, up to 2 times a day 3. (11 15 15) days, 12 minutes a day, up to 2 times a day 4. (16~20) days, 16 minutes a day, up to 2 times a day 5. (21 25) days, 20 minutes a day, up to 2 times a day 3 months exercise time