Safe and compliant with recycling standards, Jetboil's Crunchit Butane Canister Recycling tool is ideal for all of your expeditions.Jetboil's CrunchIt Butane Canister Recycling Tool is safe, fool-proof, and compliant with recycling standards. Crunch it punctures Jetboil and Jetpower (and certain other) butane fuel canisters, rendering them ready for the recycling bin and re-melting and reformation.