Alchimiaweb.com presents the Plugin Pro extraction tray, a product designed to facilitate the removal of the peat cubes from the seed tray 104 or 150 cells (two models to choose from).
The plastic trays have "spikes" and are placed below the seed tray in order to apply pressure to the cells from underneath. This makes it much easier to remove the cubes with the seedlings and not have to handle them too much.
This certainly ensures that the seedlings are in the best condition when placed in the growing pot or in open ground with no risk of damaging the roots in the process.