They do have what I consider cones instead of spikes.
I put a platform under mine because the carpet and mat I am useing would not allow the cones (spikes) to go through to the floor.
That is one thing I think Eric should address on his design.
I put a platform under mine because the carpet and mat I am useing would not allow the cones (spikes) to go through to the floor.
That is one thing I think Eric should address on his design.

