1.For sharepening and grinding 2.Low price 3.free samples Grinding head1.Finer grits 2.Eco-friendly 3, Long life, durability 4. Various sizes and gritsProduct name: grinding head/ mounted wheel Availabe materials: WA,C,GC,A,PA,DAAvailabe sizes: Various kinds of sizeAvailabe grits: According to customer's request woolen polishing wheel