Feature: These natural stones are widely used in aquariums to help absorb impurities and keep the water clean. Perfect for small projects such as cactus and succulent containers sand, potting sand, fairy gardens, DIY projects, flower arrangements, aquariums, scene layout or landscape decorations, etc. Design & Color: May vary to the stock,Customer may not choose Note:Total weight is 16kgs,will provide postage after you complete the order,thanks Size: 1-4cm x 1-3cm