) The primary clicks are tactile, but not quite light enough to be considered properly "MMO spammable" in my opinion. Not tight and a bit loose so that I can wiggle my toes. All metal hardware came with the previous unit I bought. 25" per shelf. What else can I say but these are the best water shoes that I have owned. This addition to our home office/remote school zone has kept the air clean while I work and he learns remotely. The rubber sole is very comfortable and lends itself to long days in the sandal without pain. I would purchase another. There arent enough words to express how this story tugged at my heart. I ordered a pair that failed within a week.