The Room Essentials 4pk Bed Risers in Espresso are a set of black plastic bed risers that provide an 6-inch height increase for your bed. They are compatible with standard mattress sizes and designed for adults. These bed risers from the Room Essentials brand do not require any additional parts or assembly, making it easy to enhance the height of your bed. The molded plastic material ensures durability and stability, while the sleek design adds a modern touch to your bedroom decor.