A spiker roller having (i) a roller assembly having a plurality of roller components each having a peripheral wall and a plurality of apertures in each wall and a centrally located hub or boss surrounding an opening； (ii) a multiplicity of spikes which are each releasably retained within a respective aperture of each roller component； and (iii) a support shaft which is insertable through each of the openings of each roller component wherein in operation each of the roller components rotate independently of each other.
