Sissi Hair Extension is a hair extension and wig supplier based in Tower Hamlets, offering clip-in extensions, drawstring ponytails, and full-head wigs in a wide range of styles and colours. Products include one-piece straight extensions from 16 to 24 inches, curly clip-in sets, and synthetic wigs in bob, long curl, and wave finishes. All pieces are designed for easy application, comfort, and a natural appearance, and are washable. The range includes bestsellers like the Shine straight extension, Holly ponytail, and Classic Bob wig, with regular promotional offers available.