DescriptionIf you are looking for some polishing tools to remove the rust and edges of metal objects, then these mini grinding heads can meet your needs. Reasonable design allows them to clean every corner of the object well. They have the advantages of small size, good polishing effect, high efficiency and low cost.Features- Material: Brown corundum, iron. - Size: 3.80X3.60X3.60cm /1.49X1.41X1.41inch . - Made of high-quality materials with delicate craftsmanship, these grinding heads could be used for a long time. - The scientific design makes it have good performance, can perform polishing activities more efficiently and help save time. - They have a wide adaptability, which can play an excellent role especially for stainless steel and other metals. - There are low noise and little dust during grinding, and they will not rust and fall out like the steel brush. - They are good assistants for grinding and polishing of metal and non-metal materials.