... -stastic.. 2.Customised size and shape. 3.Eco-friendly. Open Cell Flexible Sponge :Product property:1. It's made from ... polyurethane foam ,open-cell product.2. High cost-performance3. Can be cut arbitrarily, self-adhesive,simple constructionSound-absorbing principle ... , environmental protection, automotive, Marine, architectural decoration, household appliance;etc. Open Cell Flexible Sponge