Instruct: Classify a review into positive or negative sentiment.
Query: Works great and is safe

This is a great addon to the door gym, enables you to do even more upperbody workouts. It rests ontop of the Neutral pull-up bars on the door gym, I think it's perfectly safe, no idea how'd it'd slip off seeing as it grips very well to the neutral bar. Suggest this to anyone that has a door gym obviously and would like more upper body workouts.