The model is designed to mount an original Garmin Oregon Bike Mount on a STROMER ST3 or ST5. It uses the provided stem cover and fits on both stems (Sport and Comfort).
The connector parts are not necessary, but they prevent a rotation on the plate and helps to assemble the model strait.
You need the following material to assemble the parts.
1 x M5 20 mm Allen head
2 x 2.5 mm zip ties with a length of approx 100 mm
To mount the assembled model on the STROMER ST3 or ST5 stem mount, use the original screws of the stem cover.