Hello and welcome!
In this kind of mechanism, you pull on one tab and another slides out at the same time – or that’s the usual arrangement. The two sliding panels are attached to an endless belt of plastic so that when one is pulled, the other is pushed in the opposite direction.
I saw this idea on a channel called Insideoutjeans and I thought it was brilliant! I’d never thought of attaching a stamped image directly onto the plastic belt before - and I love how it works!
Here’s how I made it.
Oh, and this card is made in honour of a colleague’s new spaniel puppy. The stamp set I used is Bella and Friends and the puppy (who is so adorable) is also called Bella. I just had to make this card in her honour, don’t you agree?