Slice 10495 EDC Folding Knife with Ceramic Blade
Like their safety cutter I wrote about six years ago, Slice's EDC folding knife features a “finger-friendly” ceramic (specifially, zirconium oxide) blade that is extremely hard and cuts packaging and boxes as well as a steel razor blade, but disperses that cutting force in a way that is relatively safe for human touch.
Compatible with both the company's rounded-tip and pointed-tip ceramic blades (and a rounded one is included by default), the knife's metal handle uses a spring-assisted switchblade mechanism to deploy the cutting edge with a smooth and satisfying thwack.
See what I mean at 0:37 of this video:
The closed blade fits into your pocket with ease, or you can use the built-in lanyard hole to attach it to a keychain or...well, lanyard.
Get the Slice 10495 folding knife for $29 on Amazon.