1. About US Phonefoam, we have a firm belief of combining IDEAS and DESIGN and outstanding quality as we manufacture.We stress not only functional usage but also visual design to go ahead to needs of the smart phone users. 2. Compatible Model Galaxy S3, S4, S5, S6, S6 Edge, S6 Edge+, S7, S7 Edge, A8 Note 2, Note 3, Note 4, Note 5, Alpha LG G2, G3, G4, G5, V10, Optimus G Pro, G pro2 Iphone 5/5c/5s/SE, 6/6s, 6+/6s+ 3. How to use The Snap Ring comes with the black hook. Stick the black hook on the wall or dash board. Hang or insert the snap ring in or on the hook. The hook sticker is made up of EXTREMELY strong material. Moreover the sticker on the snap ring is semi permanent that you can wash them! 4. Why you MUST buy Phonefoam? Want to rotate your mobile at any angle when watching a video? >Snap Ring rotates overall 360 degree and vertically/horizontally 180 degrees. Long lasting, durable, strong it does not get loosen after time. Want to place large quantity of orders? >Original Equipment Manufacturer Available. We welcome large quantity orders and ship all around the world.Get outside with your dad with these Great Outdoor Gadget accessories. Be prepared for any adventure and promotion for Fathers day.