Through the three iterations, it became apparent to me that the middle size was the best to use. It was big enough that the user could only use two rings at any time to open the drawer which was very important to me, and the design was not so big that it looked awkward. After finalizing the design on cardboard, the same design was cut into 3/4 inch plywood so that the design could withstand the force of a human pulling out a drawer without deforming.
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