Triangular bandages offer other multiple uses: sling to support shoulder or injured limbs (arm, elbow, wrist, etc), tourniquet or esmarch bandage, stabilize and secure splinting on joints, secure instant cold or hot packs, secure wound dressings on large trauma wounds, and compression bandage to stop or reduce bleeding (only if no other medical compress bandage is available).  Bandages come complete with 2 pins.