
I've had the collar for about 3 weeks now. It seems well done. The clasp looks solid and is made of metal; no plastic. The snap that comes with the Whistle Go Explore (for narrower collars) looks okay (although it's plastic and can break). But the Velcro for wider collars that comes with the Whistle Go Explore doesn't seem strong enough to use. It's supposed to fit wider collars, but as you can see from my uploaded photo, the velcro barely fits over my dog's collar, which is only 1 1/8 inches wide. So I trust the Whistle Twist & Go collar a lot more. Attaching and removing the whistle is very easy. It is save. And I don't worry about it falling off. It would be nice if Whistle made a better mount for large collars so you don't have to buy your collar with the device.

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