Made from aluminum, every KeySmart is durable enough to withstand all of the slings and arrows of your everyday life, even if it gets a little outrageous from time to time. Completed with with a laser engraved logo, the KeySmart can hold up to eight keys, provided they fit onto the attachment posts with 0.158” diameters making the truly universal for all keys. You can also slot in a USB drive, RFID chips, or anything else you can fit.