Instruct: Classify a review into positive or negative sentiment.
Query: Seal or Not to Seal

This product started out like firecrackers, I just loved it but here it is not even 2 months later and I'm ready to toss them in the trash. The large container won't hold a seal for more than a couple of hours. The medium will hold for maybe 48 hours and the small isOK as far as I can tell but then again It hasn't seen much use. This is a very poorly constructed product if I had the box it came in I would drive it back to Amazon myself just to get my money back.