I've actually never used it for a projector or laptop like I planned and instead kept a small fan while running on a treadmill as the treadmill doesn't have room. After a few months of it (and the fan was only on the tray once a day for about an hour, for about 6 months (was in storage; I removed it after the run) one of the legs broke completely and it is like this now is unusable.I am so glad I never put valuables on it as it would be awful if they collapsed like the (again much smaller and lighter) fan did.
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