No pressure

Relief printing is like a clever stamp:

1. You make a plate with a design that sticks up slightly.
2. You fill the plate with ink.
3. A soft rubber ball or silicone plate picks up the ink.
4. The ball then transfers the ink onto the pen, keyring or bottle.

Just like stamping with a stamp, but much more professional!

1-colour printing involves an initial cost for a plate (colour plate with the stamp design).
4-colour printing means that 4 plates are required.