It's a set of cool Delphi components ported to Lazarus. The original components can be found here
Not all components are ported, since some are superseded by Lazarus' own component. The ported components are:
You may check the status of each component in each individual folder. The components are only tested on Win32 since it's my primary development platform (and I'm too lazy to switch Windows<->Linux all the time just to test components). Feel free to send bug fixes or report new problems to the bitbucket repository.
Get them here.