The adjustable spring straps are designed fit all boot sizes in any fin size. They can be mounted on any Aqua Lung fin that currently uses a spring strap or adjustable strap (except Rocket II).
• Easily mounted to Aqua Lung fins with adjusted rubber straps
• Adjustable from 11 1/2 to 14 3/4 inches
• 6 positions on each side allow for fine adjustment of the strap length