Manufactured by Supreme Abrasives.
These are pressure-sensitive adhesive (PSA) discs that STICK to the backing pad on DA sanders.
The discs have an open coat with a heavy-duty stearate coating to prevent loading. They also feature a resin-on-resin bond for an extended disc life.
The grit is a P-graded aluminum oxide grain for fast-cutting action.
There is no paper backing to peel off!
You pull each disc off the roll as you go.
There are 100 sanding discs on a roll.