A flexible, versatile and highly effective isolation device. These Ceraball Universal improve on an already great product, the previous version of Ceraball. Now, the redesigned version is physically larger, which makes it easier to use, more stable and with a greater weight capacity. It also offers a threaded insert, which allows you to replace spikes under your loudspeakers or equipment racks. The end result is a height-adjustable product that offers more refinement, focus and definition than the previous version. Ceraball Universal are made of aluminum and sold in one, three and four packs. They are available in Silver or Black finish.