Reddit reviews BonyTek 400/600 Grit Pocket Knife Sharpener Folding Diamond Knife Sharpener Double-Sided Sharpening Stone for Outdoor Camping Garden Kitchen (Black) (foldable)

【DIAMAND SHARPENING STONES】: The double-side small and ultra-thin diamand sharpening stones perform easy, efficient and sharp sharpening and polish.【TWO CHOICE】: Double sided diamond design for best choice.(400 Grit as coarse sharpen, 600 Grit for fine honing)【UNIQUE PORTABLE FOLDING DESIGN】: Sharpening surface is honeycomb,so it can sharpen faster and more efficient than the oval-shaped sharpening surface. Stripe is on the handle which can play a important role in anti-skid. The design of concave and convex combining on the tail end of handle prevents handle dislocation when you use it, and avoids folder your fingers. The fan-shaped and folding construction provides great protection to the stones, preventing from damage.【MATERIAL】: Titanium Plated Diamond Whetstone and ABS black stripes handle for anti-skidding.【APPLICATION SCOPE】: Due to lightweight, convenience, it fits carring around for outdoor activities perfectly .Kitchen knives.(Metal knives,Ceramics knives, Scissors, Outside knives, Garden knives, and Agricultural knives.