Shimano MTB cleats visual difference

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Originally posted at Reddit 2023-05-13: https://www.reddit.com/r/bicycling/comments/13gdole.

Just wanted to post these pictures to show what's the difference between the multi release, easy to release SM-SH56 (silver), vs. the SM-SH51 (black).

I did not know the physical/visual difference before I had both of them, as I found no pictures of it when searching.