Safe knife sheath

Safety clasp knife

Safety for knife-blade lock

Safety knife

Safety lock for automatic knife

Safety lock mechanism for folding knives

Saw blade securing mechanism

Self locking folding knife

Self opening folding knife

Self-opening folding knife

Sheath for pivotable knives

Side folding knife

Simple lever-activated folding knife

Single blade foldable knife

Single spring double lockblade folding knife

Slide lock folding blade knife

Snap shackle utility knife

Spring assist knife

Spring assist knife

Spring assist knife