Gator Zip 7206 Refill Sheet, 120-Grit, Aluminum Oxide | The original Gator Zip sander was the beginning of a new sanding revolution. The unique, diamond shape design, makes this tool ideal for hand sanding into tight spots and flat surfaces. The quick change hook-and-loop system allows for faster sheet changes to make stepping through the grits quick and easy while the ergonomic design reduces fatigue while increasing control during sanding.