* The ink is easy and safe to load. Overall I think these benches are great and my family is pleased with the end result. I have others being used to hold hand towels and wash clothes and bathroom items. Like that batteries were easy to insert and rings to attach to keys is also easy to attach. WHY DID THEY ADD IN THE DESCRIPTION THAT THESE HAD BLUETOOTH TO MISLEAD BUYERS? Anyway they do work with the cord plugged in but i my reason for buying these was MAINLY for Bluetooth use. All in all I am very happy with this purchase. I am considering trying to add cardboard to stiffen the bottom and maybe the sides. I like the case for the money. Yakima hides the key number on the side of the lock (so you can only see it if you remove the lock from its housing)- For RVs, look into the Thule Range rack, not the Apex seriesTIPS- The knob mechanism that tightens the rack within the hitch (to minimize swaying) can be a bit confusing for some to use. I would return these but since I have worn them and my feet sweated all day, I guess I am stuck with some crappy sandles.