These are Regal pumps. The instep has a strap, which you undo when putting them on. I wore them when I first bought them, but the other day, when I wore them again after a long time, they were quite slippery. Looking at the soles, the outsole of the heel on both shoes had come off (see image 5). In addition, there may be other damage due to aging. The size is 23cm. The heel height is approximately 3cm (assuming with the sole). When shipping, they will be protected from water damage and wrapped in air cushion. The box is not included.