Set of 4 Grand Prix Audio Apex Footers with Nitride Ball upgrade

original owner...like new..purchased new from Audio Element Pasadena CA Nov 2016...been in use 2 1/2 yrs...….these are the regular size ones.....they are just the unit with the nitride ball that sits in the slot.....there is no leveling adjuster...no knuckle....or small leg...no dimple......the equip sits on the balls directly...metal to metal contact...the weight of the equipment prevents roll off...I live in tremor land California and neverhad one issue with these inder the equipment listed below or a PS Audio NuWave DSD DAC..has worked great under my Rockna Wavedream Server.....Goldmund Mim 11 processor …….minimalism at its best with great engineering and materials.....for me it greatly lowered the noise floor of my system and added music that emerged from more "blackness".....less noise and grain and less artificiality...he uses these under his $40,000 racks and turntables...…. 
no original boxes or manuals  
already discounted 75% plus from msrp and like new.....orig $1410 for set of 4
 yours for $299 for set of 4 plus $17 shipping 
as is no returns pay with paypal instantly after you purchase or item will be relisted so others can purchase
if you have a GPA Rack or amp stand you can purchase the leg with the knuckle from GPA direct for $120 each and you ll still be ahead of the game....I did not advertise the knuckles because the ones I have are the standard European size in MM for my Goldmund speakers and would crossthread USA threads.....but if you own a Goldmund Satya and want to raise it to the next level vs stock Goldmund feet these are for you.....