Sandflex Cleaning Block
No toolbox should be without this unique cleaning and polishing tool. Uses are endless from cleaning rust and tarnish from metal surfaces to polishing stainless steel sinks. Simply use the block like an eraser, rubbing firmly on the surface. The results are even more spectacular when combined with water, oil, or any cleaning solution. You can “carve” the block to any shape to clean up a concave or convex surface. Made of a semi-flexible rubber compound with grits impregnated throughout the block. So, as you use it new grits are constantly exposed — never dulls! 3″ x 2″ x 7.5″
For more information about caring for your tools, you can take a look at this article that I put together. How to Care for Bonsai Tools