Lucksender Womens Fashion Round Toe Platform High Chunky Heels Knee High Knight Boots PU 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. Rubber sole Shaft measures approximately 20.86"from arch,Boot opening measures approximately 14.17"around Heel Hight approximately 3.94",Platform measures approximately 1.38" Upper Materials:PU;Lining Material:Artificial short plush