Tuff Stuff MMSH8080 Universal Fit Oscillating Multi Tool Triangle Sandpaper Holder Hook and Loop Backing Pad For Sanding Paper Size Holds 78mm Steel/Rubber. This Hook and Loop Sandpaper Holder is 3-1/2 Inch Triangular designed and the hook and loop attachment system holds accessories securely. Great for detail sanding jobs where precision is important. Use this triangle sanding pad to sand and finish detail work, flat areas, tight spots and corners with this sanding backing pad.