The primary base plate was thrown off balance and rebounded. To level the harness, (s) had to insert washers. I did not alter it; possibly this is a manufacturing flaw rather than a modification to the concept. Additionally, I suggest getting a cape on the harness since it is much more practical than sitting on the net. The cream is generally happy with the purchase. My back thanked me after leaving my previous chair, although for the price, you would expect a little bit higher quality (you need to improve the lifting-rolling assembly and eliminate all backlashes).
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