Bespoke Cock & Ball Pumping Cylinders

Every man is unique, your pump should be too.

Engineered for you. Built for your body.

Configure now

Made in the EU

Ships Worldwide

Personal Consultation

just contact me

Handcrafted

using Premium Materials & Additive Manufacturing

Fully Custom

100% Custom Made to Order

At a glance

One system to rule them all

I was never really happy with the pumping options that were available to buy, so I started to design my own pumps. Slowly but steadily it developed into a fully modular system which can cover all your pumping needs:

Fully Disassemblable Design

Right to repair built-in
Fully Disassemblable Design

My cylinders have no permanent joints and use easily available standard parts wherever possible. The entire pump can be completely taken apart for thorough cleaning and easy part replacement.

This helps your pump last for many years and future-proofs it. You want a diffrent opening or you have outgrown you current one? No problem, you can swap to a diffrent size or diffrent style without the need to buy a new pump.

Choose what fits you best

Your Opening/Entry Options

Two Stage

View in 3D
Two Stage Crosssection

Features a reduced entry diameter opening that helps mitigate the lower abdomen from getting sucked in while supporting a strong, comfortable vacuum seal. The diameter is fully customizable to fit your body perfectly.

  • Best for "complete package" pumping
  • Tapered for shaping and easily getting out
  • No sharp corners or bends for maximum comfort

Straight Inner

View in 3D
Straight Inner Crosssection

This syle sits flush to the outside of the cylinder and reduces the opening diameter by a fixed amount compared to the cylinder.

  • Best for smaller cylinders or penis pumping
  • Cock ring built-in due to narrow opening in comparison to cylinder
  • Wide base to preventing scrotum from getting sucked in as best as possible

Straight Outer

View in 3D

Striaght Outer Crossection

This syle sits flush to the outside of the cylinder and reduces the opening diameter by a fixed amount compared to the cylinder.

  • Best for mid-size cylinders
  • Full-package pumping while making use of all availabe cylinder space
  • Good for pumping for scrotal length

Pump with a buddy

Double-ended & 2-in-1 Convertible Options
Double-ended and 2-in-1 Convertible Two Stage Pump

Due to the modularity of my pump system, a double-ended pump can be realised very easily. The second opening doesn't even need to be the same style or diameter.

With an additional closed lid without a pump connection, your pump can be quickly and easily converted into a regular pump.

The position of the pump connection can be chosen freely along the cylinder.

View in 3D

Make it truly yours

Personal lid design
Custom Lid Design Examples

The lid can incorporate a custom design to really make it YOUR pump.

You can see some examples in the 3D configurator under the "Design" tab.

Contact me to discuss your design ideas.

Your pump. Your color.

It doesn't have to be always black ... only if you like
Example of pumps in Purple

Purple

Choose between one of eleven colors or combine them as you like.

Contact me if you are looking for a truly unique custom color.

Example of pumps in Blue

Blue

Example of pumps in Cyan

Cyan

Example of pumps in Green

Green

Example of pumps in Light Green

Light Green

Example of pumps in Yellow

Yellow

Example of pumps in Orange

Orange

Example of pumps in Red

Red

Example of pumps in Grey

Grey

Example of pumps in White

White

Example of pumps in Black

Black

Get in touch

You can reach me easiets on social media

X/Twitter

@KDxGP

Bluesky

@kdxgp.bsky.social

Reddit

u/KDxGP

Instagram

@kdbygp

FAQs

How do I choose the right size?

That's not really easy to answer. In my opinion there's no really good method to figure out your perfect size. Everyone is just too different. If you already own a pump, use that as a reference.

What can help you: Draw a circle with your desired diameter on a piece of paper and cut it out. Then just try whether it fits.

If you need any help, don't hesitate to contact me.

How do I choose the right opening style?

If you want to do cock and ball pumping, go for the two-stage version. If you want to pump only your penis, straight inner is the right choice. Straight outer is something in between.

How long does a custom order take?

Typically between 2–4 weeks, depending on how big my backlog is and how fast I get your cut-to-length acrylic cylinder delivered to start building.

What sizes are in stock?

Short answer: none. Every single pump is custom-built to your exact specifications. I sometimes make a few pre-builds when I find the time, but not very often. Making a pre-build or a custom build requires the same amount of effort, so price-wise there is no difference.

Is every color possible?

Unfortunately no. You can choose between the standard colors or inquire about a custom one. In that case I will look for what comes closest to your desired color, but I am limited to what I can buy as 3D-printing filament. Because it involves additional work and costs, I have to charge extra for a custom color.

What are they made of?

The clear part is made of acrylic tubing cut to your specifications. The top and bottom of the pump are 3D-printed from ABS plastic and post-processed to a smooth finish. That’s how fully custom pumps are possible.

Can the opening be made out of silicone?

In theory yes. But with individual sizing that would require making a custom mold and casting it. Possible, but very time-consuming.

Can you make a pad/sleeve like the OXBALLS JUICY?

Same answer as for a silicone opening: in theory yes, but it would require a custom-made mold.

What do they cost?

That’s a bit difficult to answer. With full custom sizing and individualization, material costs and especially build time can vary a lot. The best way to get the best cost-benefit value for you is to contact me so we can work it out together. As an indication, I have built pumps in the 90 to 450 euro range.