Ideal Designed Function: 1.Multi-Function Silicon Tether , it is not only a simple anti-lost tether, but also a anti-roll protector that prevents unexpected drops led to damage, moreover, the other side embedded in the cap made of soft silicon is exactly the size of pencil lighting pin, which guards it against possible scraping. 2.Superb Magnet Inside , we consider from different aspects that could led to any penitential loose during and after installtion, and decide to put a double protection on it so that a magnet is adapted to make sure compact with as well as tight. Qualified Material Selection: 1.Soft silicon tether does no harm to IPencil. 2.Superb magnet secure tight installation. 3.Sturdy ABS to be white keeps the apple pencil and replacement cap as a whole. Strict Test Before Sale: Every single piece of NICEUPPER Apple pencil cap was tested one by one to make sure 100% fit for IPencil top. Worry Free Warranty: NICEUPPER customer enjoy 12 months worry-free product guarantee and provide friendly, easy-to-reach support, for any reason brings unsatisfied experience, feel free to contact us. NICEUPPER is trying to provide quality products and reliable services, it is our first priority to bring a pleasant purchasing experience to every customer. For every single product, we design with collected ideas to meet the indeed needs of customers, we select the most suitable and also reliable materials to built qualified items, and test each of them one by one to make sure that they are in the best condition before sent. Specification: - Materials: Silicone, Magnet and ABS Package Includes: 1x Apple Pencil Cap Replacement