Dunlop Foams 29-400 is a firm feel open cell polyurethane foam that can offer you the right cushioning foam to suit your packaging application. This grade is also suited for sound acoustic applications as it features sound absorption properties. Whether for the home theatre or music studio, foam acoustic tiles are a must for achieving quality sound and noise control. 29-400 is perfect for the following uses: Packing & storage Rigid packaging for camera bodies & lenses to keep them safe.  Especially good when travelling. Rigid packaging for technical equipment such as head sets Secure packaging for precious items for storage such as antiques and heirlooms Noise reduction & sound absorbtion