Bradstone Old Riven Autumn Silver Paving Patio Slabs 600x450x35 (pack of 58) Old Riven is perfect for creating an affordable patio area that doesn’t compromise on style and quality. Its authentic good looks with straight sawn edge details are inspired by natural quarried stone.  Lightly riven paving with a sawn edge effect profile Manufactured in Britain using handmade masters made from natural stone. Specification: Size: 600x450x35mm Pack Size: 58 Coverage: 16.3m2