Grabo can't lift a paver if has too porous.
There are a multitude of different pavers with different densities for different purposes.
There are simply too many pores for air to leak through that the Grabo can’t get a solid vacuum suction hold on.
We’re constantly learning of new brands of pavers and we try to provide all this information on her.
for more information and see which items can lift please check below picture.