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Infinities Custom: A Complete Guide

Vašek Peca
Vašek Peca
November 3, 2021

Infinities Custom are defined by 6 parameters: panels color, thread color, thread thickness, diameter, weight, and fullness. That means that customization is not just about the looks of your juggling balls, but more importantly, their function.

Our favorite innovation lies in the last three parameters (diameter, weight and fullness). Why?

Usually, weight, size and fullness are thought of as closely tied parameters, because only a single filling material is used. But that's a very limited approach – what if you want large, full, but light balls? Because of that, we use different filling materials with different densities. By mixing the materials, we can meet any desired diameter and weight combination (in some boundaries given by the lightest and heaviest material).

We'll cover all six parameters in this article, one by one. Let's go!

#1: Panels Color

We have four colors of synthetic leather: white, lemon yellow, orange and red. While Stock Infinities are made only in single-color options, with Infinities Custom you can decide the color of each panel separately.

To define custom color layouts, we use the 8-letter code. Panels are ordered in the way that you can see in the image below. Instead of naming colors, we use their significant letters: W for white, Y for lemon yellow, O for orange and R for red.

For example, the ball in the first photo would have a code "WOWOOWOW" (or "OWOWWOWO" equivalently).

#2: Thread Color

Currently, we have four colors of thread: white, yellow, orange and red. Stock Infinities have their thread color matched to the ball, but with Infinities Custom, you can choose a different one.

Even though we use about 2 meters of thread per ball, majority of it is hidden inside the ball. Therefore, don't expect the contrasting thread to draw everyone's attention from a distance – it's just detail that gives your set an elevated look.

Pro Tip: If you need to differentiate two sets with the same color of panels, you can do so by having the thread colors different!

#3: Thread Thickness

There are two thread thicknesses that we offer with Infinities Custom: 0.6 mm and 0.8 mm. (The stock Infinities go with 0.6mm thread.)

The 0.8mm thread is recommended for those who want extra durability in seams.

#4: Diameter

There are four diameters to choose from: 64 mm, 67 mm, 70 mm and 73 mm. The diameter is measured on a 100% filled ball, so lower fullness may result in a slightly smaller diameter.

For those curious why we do not use the word "size" in Infinities Custom: in our system, "size" means a combination of diameter, weight and fullness. For example, size S is always 64mm, 105g and 97%.

#5: Weight

Weight is measured in grams. The weight includes all parts of the ball: the filling, the panels and the thread. We guarantee that the ball weight varies by less than 0.5 g.

#6: Fullness

Jugglers have different tastes in the softness of the ball. When they like their balls softer, they ask the manufacturer for an "underfill". It is however tricky to communicate the specific softness that the juggler wants. That's why we created a measure called "fullness", which translates softness to a number.

Fullness is defined as the ratio of the bulk volume of the filling to the volume capacity of the shell (in %). That means that a tightly filled ball has the fullness of 100%, a three-quarters-full ball has the fullness of 75%.

How fullness affects softness can be seen in this video (or even better if you try it yourself in one of our retail partners).

How filling is decided

There are three different filling materials that we use: two types of plastic and iron. All of these fillings are durable, non-allergenic and water resistant. They all have very similar granulation: the pieces are round and about 2 mm in diameter. That means that squeezing the ball, all of the fillings have a similar feeling, except for the obvious difference in weight.

So how do we decide which mixture of fillings is used? It all depends on the before-mentioned parameters. We put them into an equation that tells us the exact amount of each material with the precision of 0.1 g. To figure out what combination of materials will be used for a specific ball, you can use the following tables.

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