This specialized Speaker Risers assist in achieving optimal audio performance. It reduces vibration and helps to eliminate unwanted levels of audio resonance while promoting the flow of clean speaker sound projection. Excellent appearance makes the whole speakers or furniture more classy. The attached foot nails can help to adjust the height and keep stability. The material is natural ash wood, the density of the wood provides the necessary weight to dampen vibrations. (Since this is a natural material, original products may have slight differences in texture each other.) Size: 30.5 x 30.5 cm, thickness 3.8 cm ( 12 x 12 inches, 1.5 inches thick) Weight of each 2.7 kg Spike material 100% brass. The platform is available in any size, please get in touch for custom dimensions to fit your turntable or amplifier.