I bought this first aid kit for my dad who, thanks to an electric bike, has taken up cycling. After coming off second best with the gravel a few too many times we've convinced him to add this super lightweight first aid kit to his bag so he can patch himself up on site rather than dripping blood all the way home. The kit has everything that he would need to clean up a scrape or wound and then keep it well protected for the ride home. While the whistle would be helpful if he ever ended up over the bank and needed to draw attention to himself. He reckons he'll be using it to patch up all the other riders he finds in the dirt, but at least it gives us peace of mind that he's got something in his bag if things go a bit wrong.