How should the bands of permanent wave rods be fastened?

• A. Straight across the top
• B. Diagonally across the head
• C. Curved around the rod
• D. Slanted upward

Answer: (A)

When wrapping for a permanent wave, bands must hold each rod firmly in place with even tension so the curl forms consistently. Fastening the bands straight across the top provides a flat, secure hold that keeps the rod from slipping or rotating during processing. This alignment helps maintain the desired angle and uniformity from root to end. Diagonal or curved placements would pull or distort the rod, creating uneven tension and irregular curl, while a slanted upward method risks loosening the band and allowing movement.