17mm ball mount for 14mm headrest (fits Toyota 4runner, other makes/models)

17mm ball mount, fits various phone/tablet/car accessories. With 14mm mounting hole for headrest. Made specifically for Toyota 4runner, fits any other makes/models with 14mm headrest mount. 

3mf file includes custom solid infill through the neck of the mount/ball for strength. 

If you print the stl, would increase the number of walls, modify the part to add 100% infill through the neck of the mount/ball.