Product Dimensions:14 x 10 x 2 cm; 510 Grams Material Composition:Crystal Colour:Picture 5 Size:M Quantity:1 batteries required:No Item Weight:510 g Description These crystal stones are especially helpful in improving the living environment. It can be used for fish tank and aquariums to offer fish a comfortable living environment and improve the visual enjoyment. You can put it in the bag or beside TV, computer, etc. It is also great for DIY crafts. Features - Color: Pink Purple. - Material: crystal. - Size: About 14x10x2 cm. - Weight: about 500g. - Every gravel is unique and in smooth surface with polish process. - The crystal stones are also great for DIY crafts. - This luminous aquarium gravel is ideal for fish tank, gardening, deskrop ornament, etc. - This crystal luminous stone is durable and safe, for both fresh and salt water, easy for daily washing. - Also served as flowerpot stone, to make it more colorful. Package Including 1 pack of x crystal stones This crystal luminous stone is durable and safe, for both fresh and salt water, easy for daily washing. The aquarium crystal stones are also great for DIY crafts, or decorate potted plants, pond, lane and fish tank. This luminous aquarium gravel is ideal for fish tank, gardening, deskrop ornament, etc. Also served as flowerpot stone, to make it more colorful. Every gravel is unique and in smooth surface with polish process. See more product details This crystal luminous stone is durable and safe, for both fresh and salt water, easy for daily washing. The aquarium crystal stones are also great for DIY crafts, or decorate potted plants, pond, lane and fish tank. This luminous aquarium gravel is ideal for fish tank, gardening, deskrop ornament, etc. Also served as flowerpot stone, to make it more colorful. Every gravel is unique and in smooth surface with polish process.