Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Camco 25553 RV Precision Curved Ball Level

This set of levels seemed to be quite good in construction. However, the adhesive tape did not last one full week before they were lost to the road somewhere. I suppose I should have screwed them down, but my buddy has another manufactures version that he had attached to his camper over a year ago with just the adhesive tape backing provided and they are still there. The surface area was thoroughly cleaned and minor scuffing to ensure adherence but........Off to find the version my partner used. This turned out to be a waste of money for me.