The MOLLYLASH® Realistic Removable Eyelids Practice Eyelashes Set are designed with Eco-Friendly SBR Latex, soft, No chemical odor, The interchangeable eyelids come with realistic practice strip lashes, making you feel like to do eyelash extensions on real people, and the eyelids are reusable as well (the eyelash extensions can be removed with an adhesive remover), just take precautions as these are very delicate, super easy to use and so much exciting styles you can recreate without the pressure of any human interaction!