【Safe for Aquarium】 Smooth pebbles are the product of nature, which are highly polished and coated in pure paraffin wax. Only natural stones and wax, no additional fillers, dyes, or oils. Rest assured to use in your tank, these aquarium rocks are non-hazardous for your lovely fish or turtle. (See Note Below!)【Highly Polished& Shiny】 Our river rocks are natural highly polished to enhance color and shine. Without rough edges and corners, beautiful gravel make it a nice visual statement for decor. Dimension: 0.4-1.1in/1-3cm; Weight: 2.8lb/1.27kg.【Use Indoors& Outdoors】 These pebble for plants are made to last which can add an extra beautiful to your home decor. Use for flower arrangements, vase fillers, walkways, water features, floors or walls, swimming pool areas and many other areas. Also can be used as an accent to aquariums, water gardens, ponds, and terrariums.【Soil Cover& Great Drainage】 An Alternative to Mulch. The natural stones for potted plants not only play a decorative role, but also help to maintain soil moisture to add in humidity for your plants and prevent your kitten from digging in your plants. Originated from nature, the size and shape of each piece is slightly different, you can get your unique stone.【Promote Blood Circulation】With no sharp edges, these polished river stones are easy to step on your feet. Inlay the rocks on concrete or courtyard paths, and walk barefoot on the round and smooth pebbles to promote your blood circulation. This can not only exercise, but also decorate your yard and fairy garden.