If you want to enjoy stereo and surround sound to its fullest, its very important to install your speakers at the proper height. Thats where this Hisonic speaker stand LK308 comes into play. It can effectively double the power output from your speaker in a large room by improving clarity and coverage. Conservatively rated at 100 LBS weight on the center tube, The Hisonic speaker stand is adjustable from 43 inches to 81 inches, its non-slip rubber feet spread from 32" to 44", giving listeners an array of heights from which to choose. Its center tubing diameter where it meets the speaker base is 35M or 1.38 inches, which fits both of the 2 most common mounts eliminating the need & expense to modify for those sizes. All metal surfaces are finished in flat black powder coat for long lasting good looks. Designed and engineered with precision aluminum and steel construction, it offers perfect balance, durability and light weight. and allows maximum flexibility for quick, easy, and portable operation.