1. Durable and practical
2. Small size, good polishing effect, high efficiency, low cost
3. Widely used in micro electronic equipment and other industries
4. Suitable for your polishing needs, can be used for metal and non-metal materials
5. Suitable for metal surface cleaning, rust removal, grinding, dust removal, deburring, polishing, stripping residue
6. Weight: 40pcs/set about 74g, 78pcs/set about 260g, 100pcs/set about 138g, 147pcs/set about 300g