Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Design Flaw

The product works GREAT for our lab. Unfortuntaley, our Vanilla lab tore it right off the Choclate lab's neck and ate it. If you buy this collar, take te unit off the snap collar and drill holes thruigh a BUCKLE collar and then attach it. Otherwise, you'll end up with a $100 chunk of chewed plastic.