Was going to install a cat flap tonight and despite plumping for a non magnetic one for various reasons, the instructions imply it should have magnets..
There are none in the packaging and according to the product description, it doesn't have them but I obviously can't look to fit it if it should, iykwim 
Cat flap owners - do all flaps have a sort of magnetic seal to keep draughts out? Or have Argos sold me the wrong item - twice (as had to take the first one back as it had a tunnel I didn't bloody need.. and actually had magnets!)
Cannot describe how
I am as the shop is now shut so can do bugger all when all I want to do is shout at them. ..