Ideal for polishing metal mirror surfaces with disc grinders. [Uses] For polishing metal mirror surfaces with disc grinders. [Functions and Features] The unit structure is wrapped in a swirl shape and is a revolutionary polishing tool that is easy to blend with uneven surfaces. It has excellent holding power for abrasives that have been applied, and the felt surface does not harden. When used after an offset sisal is used, you can achieve an exceptional gloss. Material: Abrasive material. Fatty acid soap. Petroleum hydrocarbons. Product Code: 4961189320012; JAN Code: 4961189320012; Brand Name: KOYO; Product Name: Offset Felt Set; Standard: Kenma Zai Set