About this item Tiny Colored Coarse Silica Sand: 80g in bag, Sand Stone Decorative Rocks Stones. Each bag contains multiple shapes and natural colors.Washed Coarse Silica Sand is much more beautiful and special.The color is different between dry and wet. Stone Size: 2-5mm; .These natural gravels are widely used in aquariums to help absorb impurities and keep the water clean. While beautifying the aquarium environment, the whole aquarium environment is closer to nature Perfect Match Plant: These gravel also provide good drainage .Add rocks to potted plants, hoping to stabilize the newly planted pants and help lock the water and other nutrients in the soil, thereby helping plants grow better.In addition to the role of soil top dressing. Natural Healing : Good for Health. Reduce electromagnetic radiation, and demagnetizing.These Horticultural Pebbles Vases Fillers natural stones can make some help for meditation,chakra work and reiki healing,which will increase ones spiritual and psychic development,aiding in the ability to meditate; can purify water too. Eco Friendly Plant Sand Rock: 100% Made of natural sand raw stones. Non-toxic just like river gravels, color won't fade away through time. Only natural sand, no additional fillers, dyes, or oils. Due to transportation bump, it'll be some powder on surface. Before you first use, make sure to wash with water until their surface clean and smooth. Multi - Usage：Best decorative soil substitute for indoor plants.Can be fille In flower arrangements, walkways, water features, exposed aggregate flooring or walls, around swimming pools it could also be used to as an accent to an aquariums, water gardens, ponds, and terrariums.Add an extra beauty in your garden or just outside your house. These ornamental stones can be used as an accent to your terrarium, fish tank, fairy garden, and other DIY projects.