snap-on
adjectiveUK /ˈsnæp ɒn/
US /ˈsnæp ɑːn/
Something snap-on fastens with a quick click instead of buttons or laces.
He wore a snap-on watch strap that was easy to put on.
OTHER MEANINGS
2. A tool or part that attaches quickly by snapping into place.
She used a snap-on socket to loosen the bolt.
3. A cover or accessory that clicks onto a device.
The snap-on case protected his phone from drops.
4. Attached or added quickly and easily.
The team made a snap-on fix to the broken fence.