The ET-one lock pedal has a high-quality axle that is compatible with practically all common bicycles.
Because almost all bicycles in the world have a 9/16“ thread mount for attaching the pedal to the crank.
You can easily check it like this.
If your bike is no older than Apollo 11, it will surely fit.
In order to be able to lock / block the rear wheel, you should also note the following:
Bring the crank and pedals in a horizontal position.
If you can clearly see at least half of your old pedal through the wheel / rim, our ET-one fits!