Universal open-backed design. Compatible with Silverline, GMC and Triton Oscillating Multi-Tools and most other brands. Includes 80mm delta hook and loop backing pad, 6 x 80mm delta hook and loop sanding sheets (2 x 40G, 2 x 80G and 2 x 120G), and chromed rigid HCS scraper blades (1 x flat, 1 x cranked).