Review on Travel Conveniently With Luggage Connector Straps - 2Pack, Multi-Adjustable 1.5" W Travel Attachment Accessories For Carry On Bag Stacker by Marquel Rubio

I have rolling 4 wheeler that glides very easily. This strap seemed like a good idea but generally leaves the luggage wobbly. Instead of 3 suitcases, I'd suggest using with two. Instead of the pull up handle, run it through the fixed handle on both suitcases. For least wobble and max sturdiness, do not extend any straps. The second one is supposed to be for a third suitcase, but I use it just on two. Do not extend any strap, keep them at smallest diameter and run through fixed handles. I have attached a photo. Overall, good idea but needs a bit more refining.