
At first they were quite hard and plastic so I was afraid of breaking them when I first tried to bend my arms. After some time they relaxed and now do not bother at all. Although the base is a little strange. The levers screw into the base, but if you screw them all the way in, one of the screws will come out too far and slide on the rubber pad that should be pressing against the top of the table, so I just do it. Don't screw all the way in this second. Not a flawless design, but they're not expensive and work well.