Headrest Car Mount For Camera - by TACKFORM [Enduro Series] Rock solid autocross and track day mounting solution. Fully adjustable heavy duty ALUMINUM construction WHY PURCHASE FROM TACKFORM - Tackform, headquartered in Chicago, IL, believes that quality products should last a lifetime. In a world filled with low cost, short lived, quick fix mounting solutions, we chose to stand apart by manufacturing and selecting products designed to endure the roughest of conditions. This product is backed by TACKFORMS 100% BULLETPROOF SATISFACTION GUARANTEE. LOCKING HEADREST CLAMP - With safety in mind, weve designed this product with a fail proof all metal mounting clamp that safely and securely fastens to any headrest post up to .5" in diameter. ROCK SOLID ADJUSTABLE ARM - An all aluminum arm equipped with dual omni-directional locking ball joints and two locking elbow joints allowas for the perfect filming angle. Arm length between ball joints is 10.75". ADJUSTABLE 1/4-20 STANDARD CAMERA MOUNT - Fully articulating aluminum camera mount with familiar tripod 1/4-20 screw connected to a convenient thumbscrew to ensure a tight connection. Textured rubber pad to protect your camera. DEVICE COMPATIBILITY - This mount works on any device which uses a standard "tripod" screw (1/4-20). This includes, but isn't limited to "Point and Shoot", Mirrorless, Micro 4/3 and many of the most popular action cameras!