Lucksender Womens Closed Round Toe Platform Thigh High Stiletto Heel Boot Synthetic Heel measures approximately 5.12 inches" All of our Shoes are marked as China Size. Please measure your foot from toe to heel. We have updated the size chart, please refer to our new size chart. TPR Sole Shaft measures approximately 22" from arch,Boot opening measures approximately 16.5" around Heel measures approximately 5.12";Platform measures approximately 1.2" Patent leather