#120 Aluminum Oxide - 8 LBS - Fine Sand Blasting Abrasive Media for Blasting Cabinet or Blasting Guns. Dimensions: 6.3' 6.7' 6.2' Virgin Brown Aluminum Oxide is harder than most blasting medias. Cleans and etches on all types of surfaces including glass. Long lasting, Sharp angular grit, highly efficient and highly reusable. Non-reactant, won’t interfere with your coatings during surface prep. No detectable "crystalline silica". Lasts 10 times longer than silica. Aggressive, Medium Fine, High Density Made in the USA