Thanks for the link - Now Bought!
Damn! You didn’t hang around. Just a couple of tips, because they don’t rumble when you drive, you can forget they are there, drive slow, as with chains, and when you get back to black top, remove them. They will stand up to short sections of tarmac between the snow and ice but not prolonged sections at speed.
Like chains, they are tough but not indestructible. However, unlike chains, you chuck them in the boot and leave them there all year.
M