Angell is compatible with many trailers available on the market.
We are in the process of completing a list which will be made available soon for you.
We already know that the Thule brand sells trailers which have the right adapter and are compatible with Angell.
For your information and convenience, we are pleased to share a technical drawing of the rear wheel tube with the dimensions of the screws.
These dimensions should come handy if you wish to make sure you purchase the right model from your preferred manufacturer.