Caddy is a scarce track measured as IBM original, so that the HDD sits quite firmly in the Caddy. The protective plastic on the front of the Caddy, where the HDD connectors sit, I had to cut with a utility knife, because the Caddy otherwise not be pushed far enough to the terminals in the Bay. But that is no problem and quickly made.
The gums are actually considerably softer than the IBM / Lenovo originals, even that is not a problem.
Good: Screws for HDD mounting are.
