I'm not an expert on this but the handyman I worked with when drilling holes in the aluminum plate told me that the nozzle was damaged and cannot be used. Unfortunately, we didn't take a close look at the racket when it arrived (ordered on 05/23/2019), so it's too late for a return or exchange. It took the teacher some time to find time for the project I wanted to do (we had a summer off, travel, etc.). Yesterday he noticed that the shot is not good. The racket has not been used (the saleswoman says that is obvious). It's not cheap, I lost almost $30.
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