I learned two new terms today! these things (first image) are called “slider buckles”, and they’re the plastic things that let you loosen or tighten the straps on E.G. a backpack

and these things (second image) are called “side squeeze buckles”

also, the way that side squeeze buckles lock together is called “indexing”. one half of the buckle “indexes” the other half - locking it in place

I was literally tossing and turning in bed, trying to fight the urge to learn what these are called. the urge won

@kasdeya right we think "indexing" is a more general term for when one piece was made to fit inside another piece in such a way that they couple / can be operated together?

we might be wrong about that, memory is hazy, but we know we've heard it in more contexts relating to physical things fitting together

@tempest nope - you’re right! it’s specifically when a mechanism “locks together” with something else, from what I understand. a Technology Connections video used the term and I had to look it up lol. I even edited the Wiktionary page for “index” to include that definition