Description: 【Material】: This Sagging Mattress Support made from quality sponge material, ensuring durability and resilience 【Effectively Support】: Designed to provide support, this Under Mattress Support Board effectively prevents sagging in mattresses, couches, and sofas, maintaining their shape and functionality over time 【Versatile Use】: Sponge Bed Board is Suitable for a variety of mattresses and sofas, enhancing overall comfort by improving the structural integrity of your furniture 【Furniture Protection】: By offering improved support, this High Density Bed Board helps decrease wear and tear on your furniture, extending its lifespan 【Easy Installation】: The Sagging Mattress Support Pad can be effortlessly placed under your mattress or sofa without the need for any tools, making setup quick and simple Specification: Material: Sponge   Package Includes: 1 Sagging Mattress Support Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.