Rubber sole Heel measures: Size5-6.5 approximately 3.54";size7-8.5 approximately 3.70";size9-11 approximately 3.86". Square open-toe design: Special and gorgeous square toe features with stylish woven single strap upper and stable stiletto heels make you comfortable and fashionable day to night. You must have in your Wardrobe. Match perfectly: Single toe wide strap makes the shoes fit better with your feet, perfect for pairing with jeans, tights, shorts, skirts and dresses to make you shine at parties and dates. Easy on and off: Open-back slip on mule style, take on and off effortlessly. Easily slip off it to relax your feet after a busy day. Rubber sole and skin-friendly material make the shoes comfortable enough for wearing all day.