Foam bricks maintain their shape either frozen or thawed, Freeze before use, Recommended for tight packaging situations, Nontoxic heavy-duty plastic pouch 5 mil poly, FDA compliant, Solid when frozen not flexible, May be reused if internal foam core is not broken or cracked, Can be used to prevent freezing if heated in a microwave, Heat on low setting for 30 second increments, Flip pack over every 30 seconds until warm, 100 Recyclable, Outer bag can be recycled, Inside floral foam will break down in a landfill, Do not consume, Do no apply to the body