Check the listing for details. Adjustable Sounds Sounding Plug Enhancer Enlarger Sounds E-Stim Ring for Male. Condition: New. Listed at 6.89 USD. 100% new Privacy delivery, secret package Any questions, please contact us. Factory retail,various design, good quality, fair prices. A145 the inner di ameter of bottom ring is about 1.38"(35mm); there are 2 inserted links,diameter is about 0.118"(3mm),length is about 1.38"(35mm); the distance of t he 2 links is adjustable, widest distance is 1.1"(28mm). A67 Size:as the picture shown Material: stainless steel Penis ring This product using by DC3V 1.5 volt AAA battery only.batteries not included. Functionality: Doubling of blood flow to the penis, vascular congestion, longer and thicker erection of the penis to achieve therapeutic function. Usage: 1.Install the battery(2pcs AAA battery) then turn on the host, press "Power" button, ( keep pressing for 1-2 second, the indicate light will become red ). 2. connect the host/power host to the accessories.(such as penis rings,pads..) It's very important that you have to make the ring or pads or other accessories contact with your skin,the accessories must contact with your body,or it won’t work. 3.This has different functions, totally 4 modes: Puise / Numb / Absorb / Auto. you can press any one of " Puise / Numb / Absorb / Auto" to choose the mode as you like.after you pressed it. for "Numb" and "absorb" modes.once you pressed, it will work all the time. and for these two " Puise / Auto" modes, you need to wait 30-60 seconds after pressed, then it will work for second then pause ,then it works again, and it won't keep working all the time. 4.The roller on the up right, it can control the Intensity, up is weak, down is strong. you'd better to adjust it to be “max” more, because if you adjust it to be the "min" more, you may not feel the power. Package included:1pc Penis ring with plug This product using by DC3V 1.5 volt AAA battery only.batteries not included. Description: Functionality: Doubling of blood flow to the penis, vascular congestion, longer and thicker erection of the penis to achieve therapeutic function. 1X Penis Expander & plug(Battery not include) Package: All items will be carefully packaged in a plain wrapper with no indiscrete return address or contents notations so as to guard your privacy. Discreet packing !