Abstract: Packaging is provided for canisters of hazardous materials. The packaging includes a box and identical upper and lower cushions which isolate the canister within the box so that the canister is spaced from the walls of the box and prevented from moving within the box. The cushions include outer, middle, and inner portions which are hinged together to define three layers. The middle and inner portions each have a hole formed in the center thereof. The inner portion hole is slightly larger than the middle portion hole to accommodate lock rings which are used to maintain the canister lid closed. In one embodiment, the middle and inner portions each define knockouts which may be removed to enlarge the size of the respective holes. This allows for a single cushion to selectively be used with one of at least two canister sizes.