Could have been designed better

Extremely difficult to put onto collar. If the spring on the back were just a little longer by about 1/4" on each side it would have been very easy to put on the collar since it would give you something to push against to open the spring. Having the spring on the back be the same length as the bar on the front it gives you nothing to push against. It would be a very easy fix to make it a useful product, as it is designed and made right now, it is worthless.

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