Hi I have just been to my local Asda in Winsford, Cheshire and noticed a promotion stand with these emergency puncture repair kits for only £4. I have been looking about for this product and the cheapest I could find it was Wilkinsons online however that was £4.99 plus p+p, so this is a bargain! In my opinion this is something worth keeping in the boot of your car just incase you end up stranded somewhere.
Just checked Asda Direct and they are selling this for £6.25 so seems this is an Asda instore only deal.
This is the product as shown on the TV adverts where you attach the canister to the punctured wheel and it basically fills the tyre up with foam so you can make the journey home.