Acrylic belly bar retainer

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This acrylic retainer is slightly curved and ideal for concealing an preventing that your belly button piercing wil heal up. Made from see trough acrylic for the best non-visible effect. Held in place with an o-ring.

Curved Barbell - Size Guide

Despite the curve, measuring the length of Curved Barbells is still doable with something like a ruler. Measure the bars length in between the threading.

For the thickness, use a specialized tool like a caliper tool with a digital display.


Below an overview of the most popular body parts to wear a curved barbell. Find the standard or most common sizes for each but don't let you hold back if you prefer other measurements.


Belly Button

Standard Sizes

Thickness 1.6 mm

Length 10 mm



Standard Sizes

Thickness 1.2 mm

Length 6 mm



Most Common Sizes

Thickness 1.2 mm

Length 6 - 8 mm



Most Common Sizes

Thickness 1.2 mm

Length 8 - 10 mm



Most Common Sizes

Thickness 1.2 mm

Length 8 - 10 mm



Most Common Sizes

Thickness 1.6 mm

Length 12 - 19 mm



Standard Sizes

Thickness 1.2 mm

Length 8 mm

Acrylic - Material Guide

Piercing Jewellery made of Acrylic have a few advantages. You might benefit from having a few Acrylic pieces in your Piercing collection.

In this Material Guide we cover a few topics to explain the benefits of Acrylic Body Jewellery.

Introduction to Acrylic

The official name for Acrylic is Poly(methyl methacrylate) (PMMA). It's a thermoplastic that is hard, lightweight, and durable. Acrylic is mostly known as the crystal clear Acrylic glass. However, the material allows for endless colour variations.

Piercings made of Acrylic are much more affordable than those made of 316L Surgical Steel, let alone more expensive materials like Titanium. Acrylic Body Jewellery is also free of any Nickel, making it an excellent alternative for people sensitive to metals.


Pros and Cons

Acrylic is Lightweight and Durable.
Free of any Nickel.
Much more affordable than metal Piercings.
Acrylic Jewelry might feel cheap.
Acrylic is more fragile compared to metals.

Acrylic Explained

Poly(methyl methacrylate) (PMMA) was discovered in 1930 by two local chemists. What started as an alternative to glass quickly became commercialized by several companies around the globe. Nowadays, Acrylic is still widely used as safety glass, but people found more and more applications for the material.

For Piercing Jewellery, Acrylic is a great material. Together with Bioflex, these materials offer a wide range of affordable and often colourful alternatives to metal Piercings. Acrylic is hard and not always flexible. Some Acrylic products like Barbells have a somewhat flexible bar, but compared to Bioflex it is not very bendable. When bent too much, it will break quite easily.

Another benefit of Acrylic Piercing Jewellery is the fact that it doesn't get too cold. Wearing a Plug of Tunnel made of Acrylic on cold winter days is much more comfortable compared to metal.

"Although Acrylic is somewhat flexible, compared to Bioflex it is not very bendable."

As Acrylic is free of any Nickel, Piercings made of this material are ideal for people sensitive to metals. When you suffer from a Nickel-allergy, Acrylic Jewellery is an affordable alternative to titanium or gold.

The lack of metal in the material also makes Acrylic Jewellery perfect for a hospital visit or CT-scan. With many transparent colours available, Acrylic Piercings can also be handy when you want your piercing to be less visible, like for work.


When you browse our collection for a new Piercing, use the filters to only show Jewellery made of the Materials you are after.

2 Alcohol doekjes voor je piercings
Pair of alcohol pads
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Alcoholhoudend wattenstaafje
Alcohol Swabsticks
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Maintenance Instructions

Acrylic can last for years to come. It is not sensitive to any discolouration, meaning it is entirely free of any maintenance.

Before you put in your newly acquired Jewel, you can use alcohol to disinfect the piercing. We have alcohol pads and special swab sticks available to help out. If you prefer to use soap instead, that is no problem at all.

Other Material Guides

With Material Guides like this one, we want to help you make informed decisions when purchasing one of our Piercings online. We have written a Guide for most of the materials you will find in our webshop.

If you want to learn more about the differences between the materials used for Piercing Jewellery, read a bit more by browsing through all of our Material Guides. Our customer service can also assist you if you have any questions left before deciding what material best fits your needs.

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