2 3/4" long Diamond surfaced pad.
Folds to 3 1/2" long,1 1/8" wide, and 1/4" thick - with a handy key-ring on the end.
Great for kitchen knives, hunting, and fishing knives.
Full diamond grit surface with grit trapping hole recesses for more efficient sharpening. A must for any kitchen, sportsman, or workshop.