The aluminum oxide grit is held to the cloth (J-weight) with a flexible adhesive; you can fold it back on itself and no abrasive particles are lost. This lets you completely avoid the deep scratches caused from folding paper-backed abrasive or cloth-backed silicon carbide.
Made by Hermes, it has been favorably reviewed in a number of magazines. It comes in rolls 2" wide by 33 feet (about 10 metres) long in three grits. The sample pack contains one of each grit in 2" x 4" strips.
Made in USA.