Fiskars 53cm 21″ Soft Grip Bow Saw $5 + Delivery ($0 C&C/ in-Store) @ Bunnings

Credit to Pricehipster. Down from $14.50<$8<$5 now.

Excellent for sawing stems and thicker branches
Curved nose enables cutting in hard to each or difficult positions
Plastic protector for safe transportation
Cuts on both the push and pull stroke with unique ‘plane toothing’
25 years warranty

Enable registration in settings - general