Specifications and features:
Combined medium grit and fine grit ceramic bench stone
Fits in palm
Autoclave safe
Leather carrying case
Limited factory warranty

For warranty issues, contact Spyderco, Inc. at 800-525-7770

Double Stuff Pocket Bench Stone Combined Medium and Fine Grit Leather Carrying Case -
The Doublestuff is a 303F and 303M bonded together and packaged in a leather pouch offering a variety of sharpening options.

This pocket stone fits in the palm and has both medium and fine grits packaged in a leather carrying case. It is autoclave safe (ideal for dental tool sharpening) or can be cleaned with a plastic scouring pad and powdered abrasive cleanser.