How do I secure these wires into Isolator please...

This is a new isolator from the incoming meter.

I want to connect the Live and Neutral into the isolator and then switch it on. Usually theres bolts that are used to secure the cable in place but this isolator doesn't have it. Any ideas please?

Pic 1 is zoomed out and Pic two is zoomed in to where I would connect the L and N.

https://preview.redd.it/t4sdhdenr4bf1.jpg?width=761&format=pjpg&auto=webp&s=761072180bd961f148f0edcb9ebf1a9d7a925fd7

https://preview.redd.it/692nctoor4bf1.jpg?width=2016&format=pjpg&auto=webp&s=d746ca9d6021d4b99bd4ffcd6ac429231316c71c