3M™ Trizact™ Diamond TZ Discs are used to restore and bring back the natural beauty of stone floors, simply by using standard floor cleaning equipment. These discs are faster than a traditional diamond grind and allow you to refurbish your own floors without the need for specialists. The trapezoid shaped discs consist of micro-replicated diamond abrasive squares distributed uniformly on a flexible backing. As these structures wear, fresh, sharp diamond abrasive is continually exposed, resulting in uniform, consistent and fast cutting action through the life of the product. Packed 4 x 4 pads (16).