The Rock Solid Auto Pump is a black-and-clear, battery-powered automatic vacuum pump from Doc Johnson. It combines a rigid clear ABS cylinder, centimeter scale, anti-slip pattern, soft silicone opening, power button, air-release button, and removable battery holder.
Product details
- Brand: Doc Johnson.
- Collection: Rock Solid.
- Stag SKU: DJ3705-05.
- Manufacturer code: 3705-05-BX.
- UPC: 782421086497.
- Color: Black and clear.
- Approximate total length: 10.75 inches (27.3 cm).
- Approximate insertable length: 7 inches (17.8 cm).
- Approximate inner diameter: 3.07 inches (78 mm).
- Materials identified by the maker: ABS and silicone.
- Power: Two AAA batteries, not included.
- Controls: Power button and air-release button.
The measurements, materials, and controls above come from the current official instruction sheet for model 3705-05. Check the box and maker instructions for the item you receive. The current Stag catalog labels the experience level “Beginner”; that classification does not establish a safe pressure or replace the maker instructions.
Use and safety
This pump creates temporary external vacuum. It is not a permanent-enlargement device. The maker states that it is a recreational product rather than a medical device. It does not diagnose or treat erectile dysfunction and does not replace care from a qualified clinician.
Read the maker instructions before use. Confirm that all parts are securely connected. Inspect the cylinder, silicone opening, battery holder, power button, and air-release button. Do not use the pump if the cylinder is cracked, the silicone is torn, a connection is loose, or either button does not work. Use a small amount of water-based personal lubricant around the silicone opening to help form a seal. Keep massage oil, hand cream, petroleum products, detergents, and other non-lubricant products away from the pump.
Insert gently, form an airtight seal, and activate the pump only to the minimum comfortable vacuum needed. Do not continue through pain or chase a size result. Press the air-release button and stop immediately for pain, numbness, decreased sensation, serious bruising, blood blisters, swelling, bleeding, or unusual color or temperature change. Contact a clinician if symptoms are severe or do not resolve. Ask a healthcare professional before use if you take blood-thinning medicine, have a blood or bleeding disorder, or have a condition that can cause a prolonged painful erection.
Care and storage
Wash the permitted washable pieces before first use. After use, follow the maker instructions: clean each removable washable piece with a compatible toy cleaner or mild soap and warm water, then let every piece air-dry completely before reassembly. Keep the powered control and battery area dry unless the product label specifically says otherwise. Remove the batteries before storage. Store the dry pump in a cool place away from direct sunlight.
Browse the Rock Solid collection, compare other manual and powered pumps and pumps and extenders, or read our step-by-step penis-pump safety guide.
