Trackrite HO Flexible Track Underlay 5m – H505A This track underlay is made from a very good quality weatherproof foam and is resistant to UV light decay (making it suitable for inside or outside layouts). It is not effected by solvents, glues, oil, etc, which makes it ideal for model railway use. It also deadens the annoying quot;drum boardquot; noise of passing trains due to its foam texture. Trackrite is manufactured in Australia. This item is intended for modelling use and is not a toy. Actual product may vary slightly from the pictures shown.