Kelkay 20mm Plum Slates are long lasting and low maintenance. Ideal for fish tanks, ponds and aquariums once you’ve given them a wash prior to use. The slates are flat, reflective stone with a lovely deep plum colour, which brings contemporary look to pots, rock gardens and driveways. Size is 15-35mm, supplied in bulk bag.

When calculating how many bags you will need, we recommend a minimum depth of 35mm.