Introducing the revolutionary IST technology! Incredibly realistic intermittent suction provides a realistic "milking" sensation for the best fellatio of your life! Customize your pleasure exactly the way you want it! Enjoy a realistic intermittent suction on your own, or push to enjoy deep throat stroking action - whatever you want! Get bigger and thicker than ever! The crystal tube is designed for a firm grip and has a convenient ruler to measure your expansive growth and a magnifying section to visualize your growing thickness. The supple lips on the stretchy TPR pleasure piece help create a tight seal and firmly stroke your shaft if you choose to use the PDX Elite Blowjob Power Pump as a stroker.

• Advanced IST Technology = Realistic Intermittent Suction - Enjoy maximum pleasure with realistic intermittent suction that automatically milks your shaft and feels exactly like a real oral sex experience. Surround your penis with incredibly stimulating suction that comfortably squeezes you to ecstasy!
• The results are clear - The clear and durable suction tube has a convenient ruler and an added magnifying lens to watch you grow bigger and thicker with each teasing suction.
• Removable Soft Oral Topper - The extendable oral topper has supple lips that form a tight seal that creates suction and amazing results. The topper is removable for easy cleaning and the pump can be used with or without it.
• Care instructions: The oral topper is removable for easy cleaning. Cleaning is very easy after the fun with Refresh Toy Cleaner and warm water. Do not submerge the PDX Elite Blowjob Power Pump in water. If desired, use a water-based lotion such as Moist with this product.
• Instructions for use: Start - Press the top button to start. There are 2 suction modes. IST starts in first mode, continuous suction. Press the button again to switch to the second mode, intermittent suction. Pressing the top button will alternate between continuous vacuuming and intermittent vacuuming. Press and hold the top button for 3 seconds to turn it off.
• Quick Release - Hold the bottom "R" button to release the suction or press the "R" button for extra stimulation. Alternative release method: Press down on the surrounding skin to break the suction seal. During intermittent suction, the "R" button will flash and stop as the suction is automatically pulsed.