Black Granite Polished or Honed slabs. Stairs & Riser ( 3 Edges polished). Riser 150mm x 915 x 20mm £37.50. Riser 150mm x 1065 x 20mm £45.00. Riser 150mm x 1220 x 20mm £50.00. Riser 150mm x 1370 x 20mm £55.00.
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