When sitting on a straight-backed chair I have a tendency to rock backwards on the back pair of legs. This pretty quickly breaks the structure of even the strongest seat.
Today’s invention is a pair of skids which attach firmly to the feet of such a chair. These have a slippery underside which makes it hard not to just slide backwards if one begins to lean backwards.
Even on a super-frictional floor, the horizontal extensions make it almost impossible to rock the chair onto either its front or back pair of legs -thus protecting it from the kind of inadvertent damage which I have visited on many fine items of furniture.
This also saves the user from the embarrassment and potential danger of actually falling over backwards.
