They do not require glue as they are connected to each other with magnets. They are securely supported on your natural lashes until you decide to remove them. They are lightweight and do not weigh down the eyes, while they can be reused. For easier application, it is recommended that your own lashes are coated and to use the special placement tweezers. The lash removal product breaks the bond between the false lashes and the glue without harming the natural lashes.