Dog Rocks are a naturally occurring paramagnetic igneous rock. When placed in water, they will help purify the water by removing nitrates, ammonia & harmful trace elements like tin and copper giving your dog a cleaner source of water as well as lowering the amount of nitrates found in his diet. This will in turn lower the amount of nitrates expelled in his urine. The overload of nitrates in pet urine that causes the lawn to yellow. Mined in Australia, Dog Rocks are 100% natural and safe for all household pets.
Dog Rocks are not uniform in size and differ from package to package because they are entirely natural. The weight of each pack is a minimum of 0.44 pounds (200 grams) so the efficiency remains consistent.