Three to five hours a day of playing Yamaha keyboards for a whole lot of years and never had a problem. I agree with Larry and Scott, these things are incredible, and thankfully, they are made of plastic. I no longer wish to lift a keyboard that weighs half of what I weigh.

Cheers,

Gary

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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)