Place it at the moment of placement near the end of a short sequence, after movement has already been established. Follow it with a soft ding for a completed placement, or precede it with a short whoosh when the object is still travelling downward.
À propos de ce son
This is a 5.9-second sound effect built around a clear mechanical click, like a small figure or part being lowered and settling into place. It feels precise and satisfying rather than dramatic, giving a tiny action a definite finish that listeners instantly register as something clicking shut, dropping down, or locking in.