GermanhiIt's fairly simple, it's just a clamp essentially, but it's pretty solid. I've hung this off a stairway railing and had no reason to be worried.
GermanhiBoth grip mechanisms are strong…the universal phone mount is a ratchet mechanism and the universal tablet mount uses 2 spring-loaded arms. Both work with cases already on….the phone fits the Note 4 and iPhone 6 Plus, the tablet fits iPad minis, kindles and just about any standard size 11-12" tablet.