These cleaning block allows you to easily remove residue on your bonsai tools. Acts as a unique alternative to sandpaper, emery cloth, steel wool and rubbing compounds making it more gentle on your tools. Grit easily removes sap and other hardened materials on tools. Leaves a nice shine when finished. This set includes Fine Grit, Medium Grit, and Coarse Grit.

Fine Grit: Embedded fine grit is perfect for polishing tools after removing sticky sap and caked on dirt/oil. 

Medium Grit: Embedded medium grit is perfect for removing large pieces and stains. 

Coarse Grit: Embedded coarse grit is perfect for polishing tools after removing large and harder residue.

Simply use block like an eraser, rubbing firmly on wet or dry surface. Highly recommended. Makes cleaning your tools fast and easy. Made in the Germany. Non-toxic.