DescriptionThey are made of metal material, safe and durable. you use and install them easily. Advanced technology and scientific and technological achievements, wear - resistant, sharp,they represent the future of diamondFeatures- Color: as shown - Material: metal - Size: about 5x5x5cm - Made of material for long lasting use. - Different sizes for your choices - Large quantities for your choices - Suitable for glass ceramics floor tiles -They have the advantages of fast speed, and wear-resisting.