Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Knape & Vogt plastic slide track

I was surprised to find these, as I thought the item was out of production. The previous owner owner of my boat had upgraded the galley shelves with sliding teak panels 15 years ago, but age and cabin temps. had caused them to become brittle and they began to break up. Happy to report they were easy to cut and glue into place and the sliding panels look and operate beautifully.