This item is a set of polishing compound. Including W0.5, W1, W1.5, W2.5, W3.5, W5, W7, W10, W14, W20, W28, W40. In light of different roughness of the surface of the workpiece, the use of different polishing paste. Suitable for use on jewellery gemstone, steel hard metal, aluminium zinc, all metallurgical purpose. Features - Color: As shown. - Material: Diamond Paste. - Size: Approx. 16 x 2.3 x 3.3cm. - Weight: 5g. - It has the characteristics of high efficiency, convenience, no pollution and no corrosion. - Suitable for use on jewellery gemstone, steel hard metal, aluminium zinc, all metallurgical purpose. - Including W0.5, W1, W1.5, W2.5, W3.5, W5, W7, W10, W14, W20, W28, W40. - In light of different roughness of the surface of the workpiece, the use of different polishing paste.