Sanding Disks

I used to be able to purchase Grip A Disc sanding disks that are foam backed. They are fanatastic and your hands dont get burned. Does anyone know where they can be purchased? I used to get them from Columbe in Canada however he doesnt stock them anymore.

Thanks Cosmoman3

Just a money saving suggestion as an alternative, I order good quality europen stearate sand paper in bulk and have found this paper to be so superior and non loading that I can cut small 2 or 3 inch squares and use one of the artificial steel wool (scrubbie pads) as a backing you get the best of both worlds. Soft surface for contour, no burned fingers and maximum yield from you paper. Using this ends up being substantially cheaper than any "bargain sandpaper" I've ever purchased.