Those plastic toothpaste tubes, some have a thin metal inner, or a plastic milk carton; when cut into squares and oblongs, can get you home if you are unlucky enough to get a split in your tyre casing, place one between the inner tube and inside of the split tyre. You will that they prove to be very strong, will allow you to inflate a split tyre to quite high pressure to get you home. Just make sure that you have a few in the repair kit on your bike.
