Review on 🚗 DrsportsUSA Aluminum Universal Car Roof Rack Carrier for Skis, Snowboards, and Ski Boards - Fits Most Vehicles with Crossbars (33") by Anthony Shepherd

The upper collar tore during installation. I hope this is just a broken part and the problem is due to improper molding. Otherwise, I'm having a hard time understanding how this design can withstand the conditions it's designed for (thermal cycling in hot and cold temperatures can cause material creep and further cracking at stress points like this). Your car's vibrations also dynamically stress the joint at the high end of the aerodynamic forces from motion). If the other brackets break like this, there is a chance that the strut will come loose and become a road hazard in wintry mountain conditions (easily killing someone). As mentioned, maybe it's just a lemon and those polymer clips will do the trick, but unfortunately I can't tell yet.