Polyethylene foam fixings provide extra protection, absorb shock and prevent mechanical damage. This material can be processed into a variety of shapes; it is suitable for the production of inserts resembling bonbonbonnieres or combs, which allow parts to be inserted into the packaging unit without touching the packaging or each other. For this reason, foam fixings are used, for example, on metal pallets and boxes designed for storing painted or chrome-plated parts.