Ball bearing tipped isolation spikes. Set of 4. 1/4″-20 thread. $35 ONLY!

This is a set of 4 isolation spikes that are ball bearing tipped (which is great if you have wooden floors!). Each spike is 1.5″ tall with the threaded riser accounting for half of it (0.75″). Thread on the riser is 1/4′”-20. Minor scuff marks from use but nothing major.