The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™
The Covert Diamond™

The Covert Diamond™

Choice Designs Pro

Regular price $2,100.00 Sale


*Production time for a new order is currently 4-6 weeks.

Introducing....The Covert Diamond! 

The Covert Diamond™ is the world's most advanced, attachable prosthetic penis.

This new model of the Covert adds an internal reproductive system with the addition of the Ejacu-Loader™. This allows the wearer to preload their left testicle with the provided Ejacu-Fluid™ (pseudo semen that looks and smells real!)

To release, just give your ball a good squeeze and your penis will ejaculate!

See video here

Use the new Refresher Valve located behind the scrotum to occasionally add more lubrication and release any naturally formed air.

This version comes with a flaccid shaft that is made semi-erect by the Erecto-Mate™ (a built-in erection pump that is operated by the right testicle). 

The Bio+ feature is a $250 add-on for the Covert Pro, Covert Gold or the Covert Diamond. This design update to the Ejacu-loader can be used to ejaculate your own natural arousal fluid or it can also be used as a self-drying system to empty the cup completely post urination. To use, simply squeeze your left testicle and, on the release, any fluid that is in the cup will be drawn into the ball. When you squeeze it again, the fluid that is in the ball will shoot out of the tip of your penis. See video below for more detailed explanation and demonstration.


Fully moveable skin and scrotum

•Functioning Testicles 

•Ejacu-Loader™, Injector and Ejacu-Fluid™ 


•Concealed Refresher Valve 



*Long-term wear

*Detailed sensations

*Comfortable strong attachment

*Blends in for Stealthness

*Suction to T phallus (Feels Amazing!)

*The Bio+ feature



See our Instagram videos for detailed demonstrations on how to use these features.

See video below for demonstration of Bio + feature ( a 250 USD add-on


See video below for demonstration of the Covert Diamond



See video below to show attachment example.








Have quesitons? Contact us



The STP Cup/Urination feature

This product is designed for easy leakproof urination. Due to our unique attachment system which allows the product to cure to your skin, the stp (stand-to-pee) feature is very quick and simple to use! Simply point your shaft and reinforce the stp cup against you as seen on the demo videos page below. Then, shake it out and youre good!



This prosthetic has a flaccid shaft with an internal erection system. To make your penis erect it's as easy as squeezing your right ball 4-5 times, then close the plug and you're ready to go.

To release it back to it's flaccid state, just unplug and gently squeeze the two valves described in the user manual and in this video here.

Each order comes with a full user manual, link to private How-To video and a sample Diamond Kit (two 4 oz bottles and much more).

Add an additional Kit to your order here.


Dont see your item in stock? Sign up with us to order. 

Please include the following details to sign up to order:

1. Product

2. Skin Tone

3. Size (4"-8")

4. Firmness (Flaccid with an STP Rod or Semi-Erect)

5. Your Email Address 

Once your item becomes available, we will contact you with a link to order.