This Spring Fin Strap Kit will fit to any divers fins - even the Scubapro Twinspeed Fins. It is also one of the cheapest options if you have the Scubapro Jet Fins.
DIR style .025 stainless springs
Internal caveline to limit overstretching of springs
Heavy-duty nylon tube webbing
3 styles of 316 stainless steel buckles included
"Old School" buckles fit Turtle™, Power™, Frog™, Jet™, Twin Jet™, Rocket™ and others
"Large Post" buckles fit most of today's modern fins
"Small Post" buckles fit Atomic split fins