Sticky tap

Really this should say sticky tape.

I have trouble with my memory, its an age thing I think and I forget the simplest things.

We have cellotape dispensers at work, we are very modern but you have to buy the same size roll to go back in the dispenser.

As I can't ever remember what size to buy or even where we buy it I thought a photo would remind me we can buy a twin pack of 18mm x 30m of sticky tap from Asda!