Kota Blue Limestone Paving Sawn Edge 600x600 22mm Cal. From £19.99/m2Kota blue limestone paving slabs have a very uniform appearance, its relatively smooth (but not slippery) and flat and has an "orange peel" type of look to its surface. The texture is very tactile and "grippy". Don't forget too that Kota blue limestone paving slabs are produced with a consistent depth of 22 mm which makes them easy to lay quickly saving both time and cost. We also supply Kota blue limestone 900x600 and Kota blue limestone patio packs.