They are more like the new plastic spikes on the soles of golf shoes if you are familiar with them.
They dont give at all - but they dont penetrate the skin.
As regards the brands- there are lots out there as people say - I think the Indian ones are better (personal) I do sell some in Australia - so have checked out a few- but dont want to use the forum to sell.
There are some on Amazon that might ship to you.
All the best…Sam
just curious about these spikes - how different are they from the rubber stubs found on yogictoes mat towels?
i am quite interested in these shakti mats but i need to order them online as they are not retailed in my part of the world. your advice of a durable and effective brand would be much appreciated. :p[/QUOTE]