There are a lot of inversion tables on the market nowadays, ranging from ones with just the bare bones features to tables with infrared heating pads and back massagers.
Luckily, the basic inversion functions for these largely remain the same.
At the 60 degree inversion, the spine will get the maximum traction it needs to achieve a complete decompression. For this reason, must inversion table users do not even need to go beyond this degree.
As a general rule, don't overdo it, both in terms of inversion angle or time spent inverted.
This is not a competition, there are no records to break, the only focus should be your health.