These were the only grab bars that didn't have a hospital look.  I purchased both the 14" to mount vertically to help step over high tub wall and replace an unattractive suction cup mounted unit whose grip must be first checked before bearing weight each time and the 28" for horizontal mounting.  Cannot yet comment on installation but plan to simply mount the short one vertically in marble wall tile with conventional plastic screw sleeves as it won't bear full body weight.  Unsure I'll  be able to properly mount the 28" unit horizontally for lifting oneself out of the deep tub because unknown location studs behind marble tiles are aluminum, and I'm wary of drilling the wide diameter holes required in the fancy marble to install Wingit or similar backing.