Am I being thick?

[tommyardin]

I bought a repair kit for tyres with a view to doing a more permanent fix on my rear tyre which picked up a small nail about 300 miles after fitting.
It came with a selection of patches, glue, some mushrooms and spare valves and 5 of these weird things:-





Can someone tell me what they're for?

I am not convinced that they are not apart of your monthly medication prescription. :lol