You’re in the right place for Double wall insulated bowl.By now you already know that, whatever you are looking for, you’re sure to find it on ZHENNENG.we guarantee that it’s here on ZHENNENG.The product has excellent soundproofing performance. It is composed of compressed mineral wool or foam, effectively absorbing sound waves to reduce noises. .We aim to provide the highest quality Double wall insulated bowl.for our long-term customers and we will actively cooperate with our customers to offer effective solutions and cost benefits.