This mount has nice, big suction cup: http://goo.gl/PYKiqS (but way too big tablet holder for 7 inch devices) while this mount has really nice tablet holder http://goo.gl/DEtwgk (but not that great suction cup) so this adapter combines both of them into one 7 inch tablet mount with big suction cup. Printed in PLA. Printed in ABS+. 95% infill. Printed in horizontal with supports to get more strength. tablet-mount: In case of ABS+ due to material shrinkage you will most likely need to make mount hole (for metal part) bigger or use hot air gun when mounting it. tablet-mount-short: Shorter version, doesn't need any adjustments even with ABS, so easier to print. Metal part is no longer needed.