The assembly is rather boring. Unless you have a really long extension (you only get that if you buy it separately, e.g. with an accessory) it's very difficult to mount more than two keys and/or spacers on a threaded bush, put the top half on and insert the screw, without releasing the keys that slide all over the table. Aside from that, once assembled it does exactly what it's supposed to do - keep your keys safe so they don't wear a hole in your pocket. It's a smart design, and the accessory kit is very important - so important that the smart people who designed Keysmart should simply include a quick release carabiner and threaded extenders with a key chain. Just my thoughts - I could wear it!
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