This 4x25m roll is plained-backed, meaning it has NO hook & loop or sticky material on the back of it. We accidentally ordered it in for a customer...we meant to order hook & loop. This roll is aluminum oxide with a paper backing - Klingspor's PS29 material.

This is a great muliti-purpose roll. We would not reccommend using this on a commercial drum sander. Only ONE available.

Any item with a product number ending in DD is unable to be returned.