JOBY GripTight Suction Cup & GorillaPod Arm for Smartphones Fits smartphones with or without protective cases between 2.1-2.8in (54-72mm) wide. A flexible, quick-twist suction cup stand for your smartphone on smooth, non-porous surfaces. The simplified, compact design of the suction cup makes it easy to grip and secure - you can actually feel it lock in place. The Grip Tight Mount stabilizes and positions your smartphone to give you steady video and crisp photos from new perspectives.