Keep in mind this is a prototype and per Citymons the follwoing is going to be improved in the final design:

1. Adjust the length of the trailer arm to adapt to more models
2. Upgrade the knob design, make it more robust, upgrade the anti-theft function
3. Reduce the number of knob turns to about 7 turns to complete the locking
4. A spacer designed on the Endo-Hitch. The spacer is fixed to fit the user's receiver during the first use, so that the user can easily install it in the subsequent use even when the line of sight is not good.
5. The internal structure gear drive became a closed design, and sand will not invade the internal structure.
6. The rear door is designed to remove the trailer arm after the loss of the key, which can be quickly disassembled under the guidance of after-sales personnel, and can be repaired by DIY after obtaining accessories.

Citymons Website: https://citymons.net/