AmScuD Fin Strap Spring With Quick Release Buckle

These AmScuD Stainless Steel Spring Fin Straps are guaranteed to make putting on and taking off your fins easier and include rubber “comfort grip” puller. The rubber comfort puller provides a cushion between the spring and divers heel and provides a large grip to aid in pulling fin straps on and off. Straps will fit on all type of adjustable strap fins (MARES, AMSCUD)

Easy to use springs automatically compensates for different size feet and boots. Spring fin straps are depth compensating because they will compress to changes in the thickness of your boots. No need to adjust straps once you have descended to depth or once you ascend to the surface at the end of the dive. These corrosion resistant black fin straps come in multiple sizes.
Insert your dive boot into your fin pocket, with a measuring tape, measure the distance from the center of one strap mount pin on the side of the fin, around your boot heel, to the center of the pin on the other side of the fin. Select the spring strap size that is shorter than your measurement by 0.5″ to 1.5″ (1.3cm to 3.8cm).
Below is a list of the actual fin strap sizes (measurements are from the center of the buckle when placed on the fins mount pin):

Small: 15′ (38 cm)
Medium: 15.8′ (40 cm)
Large: 16.6′ (42 cm)

AmScuD Fin Spring 99241xx Strap – Recreational Diver, Black Features

• AMSCUD Spring Fin Strap – Recreational Diver:
• Corrosion Resistant Stainless Steel
• Fits Most Modern Fins: AmScuD Fin OH Ballistic , Rapid , Sigma 
• Easy to Install
• Comfort Grip Puller
• Rubber Comfort Puller Provides Cushion-Between Spring & Divers Heel
• Large Grip to Aid-In-Pulling Fin Straps On-&-Off
• Springs Automatically Compensates for Different Size-Feet & Boots
• Depth Compensating: Compress-to-Changes in Thickness of Boots
• Available in Multiple Sizes to Choose for Custom Fit:
  Small: 15′ (38 cm)
  Medium: 15.8′ (40 cm)
  Large: 16.6′ (42 cm)