Biothane Prong Keeper

Small, bold, and built for backup.
Our BioThane Prong Keeper is your gear’s unsung hero—adding a pop of colour, an extra layer of safety, and a whole lot of peace of mind. Whether you’re rocking a prong collar, e-collar, martingale, harness or head halter, this little strap is here to make sure things stay exactly where they should.
 
Made from super durable, waterproof BioThane and finished with your choice of hardware, it’s designed to match your existing setup and look good doing it.
 
Each keeper is 3/4” wide and 6” long (excluding clasps) —short and sweet, but strong enough to step in when things don’t go to plan.
 
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Perfect for use with:
• Prong collars
• E-collars
• Martingales
• Harnesses
• Head halters
 
Clip it between your collar/harness and leash to create a safety backup if a buckle pops or gear slips loose. Because life happens—and this keeper’s ready for it.
 
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Why it’s a keeper:
• Waterproof, weatherproof & super easy to clean
• Lightweight but strong
• Match it to your existing gear
• Adds safety without bulk
• Handmade, right here in Australia
 
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Hardware Options
Choose from 5 hardware finishes to suit your style and lifestyle:
1. Stainless Steel – One of our most durable options. Rust-proof, scratch-resistant, and ready for all-weather wear.
(Note: Quick-release buckles and lobster clasps in this option are nickel/chrome plated.)
2. Brass – Equally durable and long-wearing, brass is a classic choice that resists rust and develops a natural patina over time. Ideal for tough conditions and everyday use.
3. Black – Matte black steel hardware with a sleek, modern look. A popular fashion finish that may show signs of wear with heavy use.
4. Rose Gold – A beautiful, soft pink-gold finish for a little extra glam. Best suited for light-to-moderate wear.
5. Multichrome (Rainbow) – Eye-catching and full of colour, this fashion hardware option features a vibrant colour-shift finish. Best enjoyed as a statement piece, as it may wear over time with rough use.
 
Note: Stainless steel and brass are our top picks for strength, durability, and adventure-loving pups. Fashion finishes are fab for style, but prefer a softer lifestyle.
 
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Carabiner Clasp Upgrade – Available in Black or Silver
 
Upgrade your gear with our lightweight yet ultra-strong aluminum carabiner clasp. Weighing just 23g and rated for up to 400kg, it’s perfect for building secure leashes, hands-free leads, or custom setups. Featuring a twist-lock mechanism for added safety, it’s available in sleek black or classic silver. 
 
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Match it. Clip it. Forget it’s even there—until it saves the day.
The Biothane Prong Keeper: because safety never looked so good.