Bill,
In my 2 channel system the L/R speakers are a bit heavy at 124 lbs each.
These came with spikes, no rubber feet as an alternative.
With the rooms floor being of traditional oak planks I was concerned with the difficulty
of moving these around and also with damaging the floor.
After searching the net and considering several choices I settled on a product from
Herbies, their 1.375” diameter gliders. For me they work most excellently. YMMV
They do offer other products that might suit you better. Worth looking in to.
cheers, Jeff