As shown in the 9th photo, the main body's waterproof cover is designed not to detach from the main unit. However, the connecting axis is damaged, so it comes off. (It will function as a waterproof cover if attached.) It's safe if you tape it and then cover it with a silicone case. [Contents other than the main unit and outer box] ・Out-front mount ・Handle stem mount ・Body strap ・microUSB cable ・Quick start manual [Items not included in the set] ・Silicone case ・Film (already applied to the main unit) Since it has been used and charged only a few times, it is not thought to be very deteriorated. Please understand that this is just a subjective assessment by an amateur. Sensors are not included. Thank you.