Turn almost any SeaSucker mount into a secure, adjustable phone mount. The Flex-X Phone Adapter features a 1/4"-20 threaded insert, making it compatible with a variety of SeaSucker mounting accessories. It comes standard with our Flex-X Phone Mount, but is also available separately so you can build a custom setup for your boat, truck, UTV, kayak, or wherever your adventures take you. Popular Ways to Use It: Flex Arm Attachment – Thread the Flex-X Phone Adapter onto one end of a M/M Flex Arm Attachment, then attach the other end to an LP SeaSucker or 4.5" vacuum mount for a fully adjustable phone mount. Composite Arm – Pair the Flex-X Phone Adapter with a Composite Arm Attachment and Ball Attachment to create a versatile phone mount. This setup can be used with our Dash Bar or mounted directly to a single vacuum mount.