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

Spring assisted folding knife

Spring assisted folding knife

Spring for knife

Spring locked disassembly folding knife

Spring powered toggle joint lock for a folding knife

Spring-assisted folding knife

Straight knife with interchangeable pivoting blade