We're pumped to introduce you to our Biothane collection. Made in the USA with the tried and true SPRENGER hardware you adore, these original collars will definitely make a splash. Whether your pup is a dedicated training buddy or beloved companion, these adaptable Biothane collars are perfect for everyday use. With hardware in either our
5.0
11 ratings
5
4
3
2
1
Great Martingale for Dog
This is a great martingale for my dogs. The quality of the metal components are of high quality. I had to cut and install my FI tracker collars… I had plenty of strap to do so (I am an industrial sewist) .
C
Customer · October 28, 2026
Collar is perfect. Neon pink color is beautiful. My girl looks pretty in pink.