Koltose by Mash - Polished Black Pebbles are lightly polished and have a bright and popping finish. The rocks range between 1?- 2? inches leaving you with the perfect mix of pebbles in a variety of shapes and styles for an authentic natural appearance. The combination of style color and size will lend your project a sleek and modern look. These pebbles are 100% natural stones with a light wax polish. They contain no added fillers dyes oils or substances. These pebbles are non-toxic and unlike mulch they can last for years and years without deterioration. Use these rocks for your potted plants flower garden fairy garden vase filler flowerbeds meditation gardens terrarium crafts and all your landscaping and gardening needs. Great for both indoor and outdoor use.