One of Spyderco's most popular knives, and the one most often carried by Spyderco's founder, the keychain-sized Ladybug 3 Salt cuts with authority, is nearly as small as your car keys, and - at just over half an ounce - carries just as easily.
Its H-1 alloy blade does something no other blade steel can, it remains 100% rust free and actually holds a sharp cutting edge. H-1 is a precipitation-hardened steel with added nitrogen for markedly increased corrosion resistance.

Blade Shape Leaf Shaped Blade, developed by Spyderco, is similar to a spear point but is not quite symmetric, and is only sharpened on one side

Blade Grind full hollow grind blade shape with bevels that extend from the center of the blade down to the cutting edge. This grind maintains full blade thickness through a larger portion of the blade for increased strength. The bevels are ground with a concave radius to create a fine edge profile which is very sharp (straight razors for shaving have this hollow grind), but at the cost of slightly less edge durability compared to flat sabre ground edges

Blade Edge this knife features a SpyderEdge edge grind. This is Spydercos two-step serration pattern of alternating large serrations and double small serrations - easily seen in the photo. Serrated blades hold their sharpness incredibly well because the actual cutting edge is hidden inside each mini-arch, protected by the pointy outer edge of the blade. The pattern increases the cutting edges surface area by up to 24%, and is especially useful on materials that are tough to cut with a plain edge - like ropes.

Large trademark Spyderco Round Hole allows easy opening of the knife using the thumb of just one hand. In turn, the enlarged Round Hole creates a prominent hump in the top of the blade for your thumb to rest against while cutting. The hump and adjoining body have serrations to minimize slipping while cutting.

Handle the Ladybug 3 Salt has a high strength, lightweight, fiberglass reinforced nylon (FRN) polymer handle with Spyderco's patented bi-directional textured pattern for enhanced grip. This pattern features forward and backward graduating steps raditaing out from the center of the handle. It comes in high visibility yellow.

A huge advantage all of Spyderco's "Salt" knives can be put away wet without rusting!
One of the highest quality blade steels available, the H-1 alloy in this blade holds an exceptional edge, and is 100% rust-proof
All internal metal components are specially treated to prevent corrosion and pitting
Rockwell hardness of 57-58rc makes for superior edge durability, so it lasts a long time between sharpenings
One of Spyderco's smallest locking knives
Back Lock style positive locking mechanism employs a rocker arm to engage a notch in the tang of the blade to lock it open; depress the recessed rear end of the rocker in the spine of the knife to unlock the blade; mechanism is recessed to prevent accidental unlocking
Lanyard hole for keychain or retention cord when used around water, where once dropped, a knife is often irretrievable or lost
Closed length is 2-7/16"