The 200cm long T-shape bed gap filler is a high-density foam that can be cut to any size, providing an affordable and effective solution for tightening single, twin, queen, or king mattress covers. Made from eco-friendly and hypoallergenic foam, it ensures a non-toxic and comfortable sleep experience. This mattress extender is perfect for individuals or couples who want to maximize their sleeping space without sacrificing comfort. With its sturdy design and easy installation process, this gap filler guarantees a seamless fit and extended lifespan of your mattress and bedding.