Yeil Spike Sound Will Y1003-B magnetic levitation isolation devices.
http://www.lotusgroupusa.com/Spike.htmhttp://www.divertech.com/yeilspike.htmlSet of four with original packaging. $130 includes priority mail or flat rate shipping for the USA.
Note: The Y1003s are rated to hold 10-20kg (22-44 lbs). They are overrated with respect to the amount of weight they will support. I purchased these for a transport weighing 27 pounds and they bottomed out. They are supposed to depress within a range of not fully raised but not completely bottomed out. I do not have any equipment that weighs less so I cannot use them.
These are very slightly blemished although it is hard to notice it when the units are held in your hand and the area is completely covered when the units are in use. I had attached self-adhesive felt pads to the top to prevent damage to the units or equipment. When I removed the pads a little adhesive remained. I removed it with straight grain alcohol but it also took off a clear coat on the top portion of the units. They are still shiny. Note the top left unit in the center picture. That is the best example I could photograph.
