For DJI AVATA 2 STARTRC Propeller TPU Protective Guard Anti-collision Ring Cover(Fluorescent Green)1. The anti collision ring specially designed for DJI AVATA 2 drone propeller protector is precisely molded, fits well, and has a solid design, providing cushioning and protection for the AVATA 2 propeller protector. 2. The anti collision ring is installed on the Avata 2 propeller protector. It uses TPU material to absorb impact and has a fortress style all inclusive design to protect the Avata drone from accidental collision with trees, walls or any