Square interlocking rubber gym tile with concealed base-lock connection. UV-coated black SBR roll top over an SBR base, finished with 15% white EPDM surface granules, 20 mm thick. Part of the Black / White 20 mm system: colour- and height-matched to the white ramp edge (PG-RP-BW-20) and corner ramp (PG-CR-BW-20), joined by frosty base connectors (PG-PC-FR-01).