15" x 15" RED antique concrete patio stones We have over 200 hundred slabs in good condition, recently removed from backyard patio. 3 year-old slabs. Bought at 3,49. Selling for $1. Price non-negotiable. Need to be picked up. We are in the Sandy Hill area in Ottawa. Stones are piled only 12 feet away from drive way. For your reference, the same or similar are sold at Rona, Lowes Bought at Rona: http://www.rona.ca/en/antique-concrete-patio-stone-15-x-15-grey-53985025