Fischer Reflector Fix

My Strap (or the plastic that holds the rubber) broke off my Fischer front reflector. Fischer just made a bad product.
I wont ever buy anything from them.
Since the other part was still fine, I created a super quick and dirty simple fix with cable ties. 
Cable ties have max. 5mm width and 1.5mm height.
This is the reference-model with the rubber-strap: https://www.bauhaus.info/fahrradbeleuchtung/fischer-reflektor/p/22675280