The Adventure Medical AMK C-Splint is just the ticket to support a fractured or injured arm or leg until you can seek expert medical help. This is especially useful if your adventure takes you far off the beaten track and you have to make your own way back to civilization. The C-Splint consists of a thin core of aluminum alloy between two layers of closed-cell foam. This makes it super strong and supportive while being very light. Make it part of your first aid kit if you are heading out into the wild.