***REDUCED for XMAS***The best performing and sounding amplifier stands. It made the HRS an easy replacement. It was a striking change like an upgraded electronic component. Prefer selling both together as a package but will entertain selling individually.Above price is for only ONE not both critical mass amplifier V12 stands.They are easily a 10 condition but to be conservative I will rate a 9.I just bought them 4 months ago. Unable to keep due to new mono amplifiers dimensions. Dimensions of shelf 21 inches by 21 inches.Inner top isolation portion 18.5 by 18.5 inches where amplifier feet can rest.The height is 9 inches.Weight capacity 200 plus pounds.The details and quality of parts I have never seen. The difference in sound improvement was so profound that Mr. Stirling Trayle who sets systems in residences and all major shows around the world was also impressed with the finish and sound. The stand isolates by multiple different technological methods. Made my expensive TOP OF THE LINE HRS look and sound mediocre.