Small weighs 7.3 grams. Medium weighs 7.8 grams. Large weighs 10.1 grams.

By comparison a quarter (minted in Denver in 2020)  weighs 5.7 grams. A nickel (also Denver, 2018) comes in at 5.0 grams. Interestingly a lesser goldfinch weighs between 7.9 grams to 11.6 grams. But we don't recommend playing with birds or coins on your racket.

No. Top Spinners were invented by tennis players, for tennis players. And the last thing we want is a scratched racket.

We make Top Spinners in three different sizes. All fingers are different (one of the many details that makes things interesting) so you're going to want to find the fit that best suits you. Lumberjacks, for example, need a different size than jockeys. A Top Spinner spins on a bearing that should fit nicely between your first and second knuckles. Closer to the second knuckle. See our sizing guide at the bottom of our Shop Tab.

No. Unless Velcro is a challenge for you, it's just like putting on a bandage. A bandage that brings you joy in between points.

Top Spinners have Velcro attachments so they can be removed. They will remain permanently in your heart and your soul, however.

We're unclear on this. This is what the rule says: 

The racket shall be free of any attached object, protrusion or device which makes it possible to change materially the shape of the racket, or its moment of inertia about any principal axis, or to change any physical property which may affect the performance of the racket during the playing of a point. Attached objects, protrusions and devices that are approved as Player Analysis Technology, or that are utilised to limit or prevent wear and tear or vibration or, for the frame only, to distribute weight, are permitted. All permissible objects, protrusions and devices must be reasonable in size and placement for their respective purpose(s).

The key to the moment of inertia argument is the word ‘materially’. The spinner is near the center of mass so no moments are materially changed. But we don’t really get this rule because you are allowed to put weighted tape on top of your racket head which would affect a moment of inertia. 

If you're a lawyer, this might be an interesting case. The rules are specific enough that they say you can’t install a power source to your racket including a solar panel. But they're grey enough that we can't tell if a Top Spinner is going to get you yelled at by an umpire.

Not yet but check back here for updates. And if you're a famous tennis player, call us!

Two good ways:

1. connect your two straps into a longer one and connect the TopSpinner to the top of the handle.

2. Email us (info@thetopspinner.com) when you order and we will send you a longer strap.