The NO-FED-BEAR™ container stores perfectly in you backpack or by attaching it to the outside with the available storage case. Each canister is made of a bear proof polymer blend. The NO-FED-BEAR™ bear resistant container is simple to open and close with a coin. Just insert a coin in the metal fastener and turn counter clockwise. Then remove the lid. To relock the unit, turn the fasteners clockwise.