Mammoth Mount with claw grip provides a double ribbed heavy duty goose neck and a pressure lock suction. It's also includes one of the strongest 4 way lock in phone grip in todays market. The grip is expandable to fit all size phones with protective cases. Tested to fit the following phones with cases: IPHONE XS MAX with Otter box defender SAMSUNG GALAXY S9+ with otter box defender SAMSUNG GALAXY 10+ with otter box defender SAMSUNG NOTE 9 with Pelican Voyager case.   * Extra large suction cup 4 1/4" *pressure lock suction *double ribbed bendable gooseneck *360 degree rotating holder *lock in 4 way phone grip *expandable to fit all size phones with protective cases. *quick release button for easy phone removal. California Prop 65 WARNING SPECS: WEIGHT: 1.80lbsDIMENSIONS: 4.75"W x 11.5"H x 4.75"DCOMPATIBILITY: All SmartphonesPART NAME: TT-4S-MAM WARRANTY: 5 YEAR RELATED INFO: WARRANTY *Note:  Although this product has been thoroughly tested under extreme conditions, to avoid possible damage to product it is recommended that you remove unit from windshield if vehicle will be left parked/docked in extreme conditions for prolonged periods of time.