Looks like the same stuff that I got from screw fix last year.
If it is it does make a cracking addition to an aluminium floored sib.
My aluminium floored Honwave was like kneeling on a cheese grater and as slippery as an eel hen wet - before I fitted the matting to it.
One of the best additions I have made to my Sib - and cheapest too.
It's still like new one year on and if cut and fitted properly it doesn't move around.
Easy to remove for washing out the Sib etc.
Here the link to the thread I posted last year.
Get your skates on and get down to Aldi!
Sib aluminum floor - matting