I have had a number of Accuracy 1st scope levels and had absolutely no problems; often recommended them! However, the last two I purchased both developed bubbles (see pics) which rendered them unusable. Naively I assumed Accuracy 1st would stand behind their product but was informed that their products carry no warranty whatsoever. They suggested I contact the Canadian dealer, so I emailed Coretac Solutions (twice) explaining the problem with pics without a response which confirmed to me the lack of warranty. I thought I would post this as quality of this product seems to have declined and they are not cheap! FYI