The MILWAUKEE Universal Fit OPEN-LOK 3-1/2 Triangle Sanding Pad 1 Pack is for Oscillating Multi-Tools. The 3-1/2 Triangle Sanding Pad utilizes hook and loop technology for fast and secure paper changes. The sanding pad uses a dense foam backer for flexibility and durability, delivering a longer pad life and a smooth sanding experience. This multi-tool sanding pad is ideal for detail sanding and hard to reach areas.