This is the "Crops PRO" model, offering greater strength and a higher level of security. It's a very sturdy wire lock, 180cm long, 1cm thick, and weighing approximately 550g. The connection point, resembling a power plug, appears quite robust. I used it only once for a week-long long ride and didn't use it for everyday purposes. It has been stored indoors in a dark place. It comes with three keys, the same number as when purchased. While it doesn't have an alarm function on its own, it is reportedly possible to attach a Lion Alarm. Everything in the images is included. Thank you.