They typically look something like this:



The better ones are constructed of metal, not a wood pole, so they can't be climbed.

They are a very very common feature in canadian parks, where we don't have canister requirements but do have requirements to have your food up one of those. With *most* designs (not all) they have a clip to hold the loop of wire at the bottom, and a loop of wire to attach your bag - it really helps to take a
micro-carabiner to clip into the loop, rather than having to tie it on.

I hang either my silnylon food bag, or more typically, my whole pack (after taking out what I need
for the night). I take a regular green garbage bag, poke a hole in the middle of the bottom, pull my top
strap of my pack through it so the pack is wearing the garbage bag with only the top strap poking through, clip a mini-biner to the strap, and hoist it up. Then it doesn't matter how rainy it is my pack isn't
soaked, and I'm not worried about critters getting into it.