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Intro to Yo-Yo Specs

Each of our yo-yo descriptions contain detailed specs that probably give you way more information than you need, and some items you might not even understand. There's a lot of specialized vocabulary, so it might be overwhelming for newbies.

Each product page contains a "Details" section, which contains a variety of information:


What brand is the yo-yo or product?


Each maker differentiates between their product lines in different ways. For instance, YoYoFactory's SpinStar is a part of their F.A.S.T. series.


Which style is the yo-yo design for? This is based on our staff's own experience and testing of the product. Possible styles include:

1. For Beginners

2. String Play (1A, 3A, 5A)

3. Looping Tricks (2A)

5. Off String (4A)

5. Long Sleeper Specialization

6. Collection Model

At this time, our "Style" specs are not complete, and only suggest the main use for each type of yo-yo. Read our product descriptions for more detailed explanations for the yo-yo's purpose and uses.

Age Group

Who is this yo-yo for? Usually this is established by the maker themself.

Brand Country

Where is the maker from?

Country of Origin

Where was the yo-yo itself made?

Weight (g)

How heavy is the yo-yo itself. Weight makes a huge impact on the way a yo-yo plays; this is a spec you should pay attention to. We take this measurement ourself, removing the string and weighing just the yo-yo.

Diameter (mm)

Diameter of the side of the yo-yo. This is another important detail, we measure this ourselves with a set of electronic calipers.

Body Width (mm)

Width of the body, from one side to the other. We measure this ourselves with a set of calipers.

Trapeze Width

This is also known as Gap Width or Catch Zone, and refers to the effective width of the area in the yo-yo where you can mount the yo-yo on the string. We measure this ourselves with a set of calipers, and round to the nearest .1 mm. Our measurement sometimes differs from the maker's own specs.

Body Shape

There are various body shapes for yo-yos these days, Click here for more information.

Body Material

What is the body made from? Most yo-yos are made from either plastics or aluminum.

Rim Material

Sometimes the yo-yo has a special rim made from a material different from the body material.

Bearing/Axle Type

Ball bearings, KonKave Bearings, wooden axles, nylon spools, metal fixed axles, etc. These parts make the world go round. Click here for more information.

Bearing Size

Ball Bearings come in a variety of sizes, and for the sake of maintenance or modifications, it's important to know this specification.

Response System

The type of response system the yo-yo uses, and its size. This is important for proper yo-yo maintenance, as there are many different kinds of response pads available.

Gap Type

Whether or not the yo-yo can be opened up for maintenance.


If the yo-yo uses a spacer, what type does it use.


Indicates whether a yo-yo requires a bind response or not: Possible values include: Tug Response, Bind Recommended, Bind Required, and Adjustable

Body Treatments

Indicates whether a yo-yo has been treated in one way or another, such as blast finishing to give the yo-yo a smooth, velvety feel. Aluminum yo-yos without any processing or coloring whatsoever are known as RAW silver yo-yos.


Indicates what kind of maintenance the yo-yo requires, if any. If further information is necessary, a link will be provided.


Indicates whether or not a yo-yo has a special setting or gimmick in its design.

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