The VicTotem Ultra VMT Extra Module from Vicoustic is natural oak on one side and light gray on the other. It is an independent unit designed to be coupled to the VicTotem Ultra VMT to expand its height and performance. The VMT side of of this item is an efficient sound absorber, while the high-pressure laminate wood side acts as a diffuser, allowing you to tune your free-standing acoustic solution to meet your needs. Add as many of these modules as you desire; it is free standing, so you can stack it or spread more than one around your space as needed.