When tension is applied to the martingale chain it will reduce the collar's size by a max of 4"
We believe screws are the most durable as the threads are tightened & reinforced to ensure your leash will never come apart
This is the style that comes with your standard fi collar and is the recommended fi style for the new series 3+ to ensure you get the most optimal accuracy with its additional behavior monitoring features
and perfect for dogs all ages & breeds
You can also choose between stainless steel or black metal D-rings to suit your preferences
Tropical Fish BioThane® Leash Black Friday Sales When tension is applied toTake your dog on any adventure with confidence, thanks to BioThane. Whether your dog loves to swim, hike, surf, or play in the mud, our BioThane gear is designed to keep up with your dog's active lifestyle. With a range of colors & patterns to choose from, you can find the perfect leash to match your dog's personality. Constructed with super heavy BioThane in either 3 4" or 1" width 100% waterproof, anti microbial, & durable making them perfect for