MILWAUKEE's Universal Fit OPEN-LOK™ 89mm Triangle Sanding Pad & Assorted Grit Sandpaper Set is for use with Oscillating Multi-Tools. Sanding pad and sandpaper utilise hook & loop technology for fast and secure paper changes. The sanding pad has a dense foam backer for flexibility and durability, delivering a longer pad life and a smooth sanding experience. It's shape is ideal for detail sanding and helps gain acess in hard to reach areas. The grit selection covers applications from material removal to fine finish work.