Thanks to the universal adhesive patch, conventional smartphone cases can be transformed into a FIDLOCK VACUUM case. The VACUUM geometry is securely attached to any case with the help of an 3M adhesive patch. A smooth surface is essential for the suction cup to adhere securely. Mounts and accessories sold separately. Product Features: 360° rotatable when mounted For mounting to SMOOTH phone cases with a solid surface. (Not compatible with cases with a rubber outer shell [Ex: Otterbox Defenders]) Not for mounting to structured surfaces and silicone cases. No interference with electronics. Fits all Fidlock VACUUM series bases. Delivery includes: VACUUM universal phone patch, 3M adhesive patch, cleaning wipe. Related Products: This mount is compatible with Fidlock "vacuum" series accessories. Click here to view the Fidlock Vacuum Universal Phone Case. Click here to view the Fidlock Vacuum Ahead Cap Base mount (for headstems). Click here to view the Fidlock Vacuum Handlebar mount.