Review on Herm Sprenger 19-inch Neck-tech Martingale Collar with Snap, Adjustable Size for Dogs by Michael Cullen

Started with a standard collar but chose the neck technology because it looks great and isn't as "aggressive". These things work like a charm, solid construction. You don't have to worry about missing rubber tips or links that tighten like traditional collars. I can walk my two Dutch Shepherds without incident (I have a dog that chases cars and this has enabled me to walk them without fear of their lunge). Too bad they didn't make a martingale style neck in black. Feel free to spend the extra money, they're made to last. Please also learn how to choose and use them correctly to get the most out of them.