3M 99406NA 9" X 11" 50D Grit Pro-Pak Paint & Rust Removal Sandpaper Sheets (25 Pack) 3M is a diversified technology company serving customers and communities with innovative products and services. 3M is committed to actively contributing to sustainable development through environmental protection, social responsibility and economic progress. 3M Pro-Pak Aluminum Oxide Sheets features tough, durable aluminum oxide coating. Ideal for sanding wood, paint, metal, plastic, drywall and fiberglass. Long-lasting. 3M 99406NA 9" X 11" 50D Grit Pro-Pak Paint & Rust Removal Sandpaper Sheets (25 Pack) Features: General purpose sanding For wood, metal, plastic, fiberglass and painted surfaces Aluminum oxide sandpaper sheets 9" x 11" 25 per card 99401NA: Alox 220A grit 99402NA: Alox 150C grit 99403NA: Alox 120C grit 99404NA: Alox 100C grit 99405NA: Alox 80D grit