Universal 17mm Ball Head Base Magnetic Car Phone Holder Parts Kit with Mount Brackets for MagSafe Accessories. Specification: Product Name: Car Phone holder, Color: black, Material: plastic+iron, Size: Approx. 5.7*5.7*2.7cm, Applicable: Universal. Features: Magnetic Adhesive Technology, Plastic and Iron Structure, Compact Size, General Usage. Easy to connect and adjust. Packaging Content: Your package includes a magnetic Magsafe phone holder and a magnetic ring.