[Features] · A professional stick grindstone that boasts excellent quality, grinding capacity and ease of use. · An extensive product lineup of stick grindstones with different abrasive grains, binders, degree of bonding and particle sizes. · A highly elastic stick grindstone that's made of compressed nonfibrous nylon coated with abrasive grains. · It causes less clogging, making it optimal for grinding aluminum, etc. · As it is soft, it works well on machined surfaces and provides uniform polishing without damaging the material.