A set of 2 sloping stands containing 10 wooden green frames in all. Each of the frames has wooden insets with knobs on them. The insets are in red colour. The insets are partitioned and shaped as follows: 1. Circle whole and cut into ?, 1/3, ?, 1/5 2. Circles cut into 1/6, 1/7, 1/8, 1/9, 1/10 |