100 Grit Hook & Loop Triangular Sand Paper (20/pack). They are to use in smaller hard to get areas where you need to sand old paint or rust on almost any surface. I for corners and edges. You can use it on wood, fiberglass, and metals. They are 3-3/16 of an inch per side. They fit most triangular backer pads that usually come with your multi tool and fasten via hook and loop. Also known as Hook & Loop.

Features:

Mounting System: Hook & Loop

Dimensions: 81 mm x 81 mm x 81 mm (3-3/16" per side)

Grit: 100

Shape: Triangular

Fabric Reinforced